BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Mount Diablo Bird Alliance - ECPv6.16.4.1//NONSGML v1.0//EN
CALSCALE:GREGORIAN
METHOD:PUBLISH
X-WR-CALNAME:Mount Diablo Bird Alliance
X-ORIGINAL-URL:https://mtdiablobirds.org
X-WR-CALDESC:Events for Mount Diablo Bird Alliance
REFRESH-INTERVAL;VALUE=DURATION:PT1H
X-Robots-Tag:noindex
X-PUBLISHED-TTL:PT1H
BEGIN:VTIMEZONE
TZID:America/Los_Angeles
BEGIN:DAYLIGHT
TZOFFSETFROM:-0800
TZOFFSETTO:-0700
TZNAME:PDT
DTSTART:20250309T100000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:-0700
TZOFFSETTO:-0800
TZNAME:PST
DTSTART:20251102T090000
END:STANDARD
BEGIN:DAYLIGHT
TZOFFSETFROM:-0800
TZOFFSETTO:-0700
TZNAME:PDT
DTSTART:20260308T100000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:-0700
TZOFFSETTO:-0800
TZNAME:PST
DTSTART:20261101T090000
END:STANDARD
BEGIN:DAYLIGHT
TZOFFSETFROM:-0800
TZOFFSETTO:-0700
TZNAME:PDT
DTSTART:20270314T100000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:-0700
TZOFFSETTO:-0800
TZNAME:PST
DTSTART:20271107T090000
END:STANDARD
END:VTIMEZONE
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20260407T083000
DTEND;TZID=America/Los_Angeles:20260407T123000
DTSTAMP:20260422T234323Z
CREATED:20260216T032028Z
LAST-MODIFIED:20260422T234323Z
UID:9358-1775550600-1775565000@mtdiablobirds.org
SUMMARY:MDBA Field Trip -- North Briones
DESCRIPTION:This walk begins in oak woodlands with lots of spring wildflowers and birds. We then continue up through grasslands\, ending at Sindicich Lagoons. We return the way we came\, hiking about 3 miles round trip over fire roads and hilly trails. Bring liquids & a snack if you like. \nTrail Rating: Category 3 – uphill climb.\nElevation change: 300+ feet.\nLeader: Cheryl Abel\, 925-957-6229\nMeet: Parking area at the north entrance of Briones Regional Park.\nDirections: Take Briones Road south off Alhambra Valley Road and drive up this narrow\, winding road. Park at the end. \nThe field trip is limited to 15 participants. Participants must acknowledge the MDBA Liability Waiver. Register HERE:\nhttps://www.eventbrite.com/e/birding-north-briones-tickets-1983165537508 \n(Photo of Red-tailed Hawk by Isaac Aronow)
URL:https://mtdiablobirds.org/event/mdba-field-trip-north-briones-apr-2026/
LOCATION:Briones Regional Park (North)\, XV37+VX\, Martinez\, CA\, 94553\, United States
CATEGORIES:Birding,Field Trips
ATTACH;FMTTYPE=image/jpeg:https://mtdiablobirds.org/wp-content/uploads/2025/02/RTHA_WestBriones_Aronow.jpeg
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20260414T080000
DTEND;TZID=America/Los_Angeles:20260414T130000
DTSTAMP:20260422T234323Z
CREATED:20260216T032334Z
LAST-MODIFIED:20260422T234323Z
UID:9360-1776153600-1776171600@mtdiablobirds.org
SUMMARY:MDBA Field Trip -- Mitchell Canyon
DESCRIPTION:We will walk into Mitchell Canyon on the lower slopes of Mount Diablo State Park. Many spring birds are possible here: warblers\, hummingbirds\, flycatchers\, gnatcatchers and more. Spring flowers will be blooming. \nTrail Rating: Category 3. 3+ miles on a potentially hot\, dusty trail.\nElevation change: up to 400 feet\nLeader: Sandy Ritchie\, (925) 381-2514\nMeet: Mitchell Canyon parking lot\, Clayton.\nDirections: From Ygnacio Valley Road in Concord\, turn south on Clayton Road. Turn right onto Mitchell Canyon Road and drive past the quarry to the end. \nUnless you have a State Parks pass a $6 parking fee is required—bring exact bills. \nThis field trip is limited to 15 participants. Register HERE:\nhttps://www.eventbrite.com/e/birding-mitchell-canyon-tickets-1983196665613 \n(Wilson’s Warbler photo by Jerry Britten)
URL:https://mtdiablobirds.org/event/mdba-field-trip-mitchell-canyon-apr-2026/
LOCATION:Mitchell Canyon\, 96 Mitchell Canyon Road\, Clayton\, CA\, 94517\, United States
CATEGORIES:Birding,Field Trips
ATTACH;FMTTYPE=image/jpeg:https://mtdiablobirds.org/wp-content/uploads/2019/03/wilsons-warbler.jpg
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20260417T080000
DTEND;TZID=America/Los_Angeles:20260417T133000
DTSTAMP:20260422T234323Z
CREATED:20260216T032631Z
LAST-MODIFIED:20260422T234323Z
UID:9362-1776412800-1776432600@mtdiablobirds.org
SUMMARY:MDBA Field Trip -- Black Diamond Mines
DESCRIPTION:This trip includes a vigorous climb up a steep trail\, with an elevation gain of several hundred feet. Why make the climb? Because the location offers the best chance in our MDBA territory to see and hear Canyon Wrens! The trail is rocky\, and footing can be tricky—Be advised!\nThere is no guarantee of finding the elusive wrens\, but we will certainly see many other birds. California Thrasher\, Rufous-crowned Sparrow and Phainopepla are often seen here. At the worst\, we will share an adventure in a beautiful and historically interesting location. Be sure to bring enough water\, and lunch or a snack. \nRating: Category 3\, steep rocky trail\, potentially hot.\nElevation change: 600 feet\nLeader: Matt Tarlach\, MDBAFieldtrips@gmail.com\nMeet: Black Diamond Mines parking lot at the south end of Somersville Road.\nDirections: Exit Hwy 4 at Somersville Road in Antioch. Drive south\, enter the park gate and drive about 1 mile uphill to the last parking lot at the road’s end. \nThis trip is limited to 12 participants. Register HERE:\nhttps://www.eventbrite.com/e/birding-hike-at-black-diamond-mines-tickets-1983196862201 \n(Photo of Canyon Wren by Vicky Atkinson)
URL:https://mtdiablobirds.org/event/mdba-field-trip-black-diamond-mines-apr-2026/
LOCATION:Black Diamond Mines Regional Preserve\, X45P+PP\, Antioch\, CA\, 94565\, United States
CATEGORIES:Birding,Field Trips
ATTACH;FMTTYPE=image/jpeg:https://mtdiablobirds.org/wp-content/uploads/2025/02/CAWR_BDM_AtkinsonCrop-scaled.jpg
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20260421T090000
DTEND;TZID=America/Los_Angeles:20260421T150000
DTSTAMP:20260422T234323Z
CREATED:20260216T032938Z
LAST-MODIFIED:20260422T234323Z
UID:9364-1776762000-1776783600@mtdiablobirds.org
SUMMARY:MDBA Field Trip -- Del Puerto Canyon
DESCRIPTION:We’ll drive along Del Puerto Canyon\, on the east side of the Diablo Range\, looking for Canyon Wren\, Costa’ s Hummingbird\, Greater Roadrunner\, and other special birds. It can get very warm! Bring lunch and plenty of liquids\, as this trip takes us further from conveniences that most of our outings. \nTrail Rating: 1 – This is mostly a car trip\, with several easy walks.\nLeader: Steve Buffi (925) 200-4555 \nCarpools should plan to leave at 7:30 AM from Sycamore Valley Road Park and Ride. OR\, meet on Del Puerto Canyon Road west of I-5 at 9 AM at the Patterson Exit (Diablo Grande Parkway and Sperry Road) off I-5 (56 miles from Sycamore Valley Road). Take I-580 east to I-5 south.\nWe’re usually home for dinner. \nThere is no capacity limit on this trip. Carpooling is strongly recommended. We usually meet at Sycamore Valley Road. \nRegister HERE:\nhttps://www.eventbrite.com/e/birding-del-puerto-canyon-tickets-1983169624733 \n(Western Kingbird photo by Isaac Aronow)
URL:https://mtdiablobirds.org/event/mdba-field-trip-del-puerto-canyon-apr-2026/
LOCATION:Del Puerto Canyon Rd & Diablo Grande Pkwy\, Del Puerto Canyon Rd\, Patterson\, CA\, 95363\, United States
CATEGORIES:Birding,Field Trips
ATTACH;FMTTYPE=image/jpeg:https://mtdiablobirds.org/wp-content/uploads/2024/03/WEKI_DelPuerto_Aronow.jpg
GEO:37.4626529;-121.1857453
X-APPLE-STRUCTURED-LOCATION;VALUE=URI;X-ADDRESS=Del Puerto Canyon Rd & Diablo Grande Pkwy Del Puerto Canyon Rd Patterson CA 95363 United States;X-APPLE-RADIUS=500;X-TITLE=Del Puerto Canyon Rd:geo:-121.1857453,37.4626529
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20260423T090000
DTEND;TZID=America/Los_Angeles:20260423T133000
DTSTAMP:20260318T233104Z
CREATED:20260318T231455Z
LAST-MODIFIED:20260318T233104Z
UID:9371-1776934800-1776951000@mtdiablobirds.org
SUMMARY:MDBA Field Trip -- Lagoon Valley & Pena Adobe
DESCRIPTION:We will first bird at Pena Adobe Park\, located off I-80 just west of Vacaville. Pena Adobe is a historic park with well established trees\, including an orange tree planted as early as the1860s. Birds we’ve seen here include Brown Creeper\, Hermit Thrush and Black-headed Grosbeak. \nAfter exploring Pena Adobe we will drive to Lagoon Valley Park. There is a $5 parking fee here\, and note the kiosk only takes either exact cash—no change given!—or debit/credit card. Birds seen at Lagoon Valley have included Western Bluebird\, Cliff Swallow\, Bullock’s Oriole and Western Kingbird. If the lake level is low\, there is a good chance for Wilson’s Snipe and Greater Yellow-legs. Bufflehead and American Wigeon are often among the waterbirds on the lake. \nTrail Rating: 1 – Easy. Mostly level paths.\nLeader: Mona Lange\, 510-414-2959\nMeet: Pena Adobe Park\, off I-80 between Fairfeld and Vacaville.\nDirections: Take 680 to 80 East towards Sacramento. Take Exit 51B\, Pena Adobe Road.\nDO NOT take the Lagoon Valley Road exit. After the stop sign\, proceed straight veering to the LEFT onto Pena Adobe Road. Meet at the restroom building. Address is 4699 Pena Adobe Road\, Vacaville\, CA. \nThis field trip is limited to 12 participants. Participants must acknowledge the MDBA Liability Waiver (available during registration). Register HERE:\nhttps://www.eventbrite.com/e/birding-lagoon-valley-tickets-1985234526911 \n(Photo of Brown Creeper by Mona Lange)
URL:https://mtdiablobirds.org/event/mdba-field-trip-lagoon-valley-pena-adobe-apr-2026/
LOCATION:Peña Adobe Regional Park\, 4699 Peña Adobe Rd.\, Vacaville\, CA\, 95687
CATEGORIES:Birding,Field Trips
ATTACH;FMTTYPE=image/jpeg:https://mtdiablobirds.org/wp-content/uploads/2024/03/BRCR_PenaAdobe_Lange-TPAI-scaled.jpeg
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20260501T083000
DTEND;TZID=America/Los_Angeles:20260501T123000
DTSTAMP:20260318T235330Z
CREATED:20260318T232621Z
LAST-MODIFIED:20260318T235330Z
UID:9375-1777624200-1777638600@mtdiablobirds.org
SUMMARY:MDBA Field Trip -- Brannan Island & Delta Rookery
DESCRIPTION:We’ll start at the entrance to Brannan Island SRA\, in the parking lot east side of Hwy 160. Pay the entrance fee at the station or by envelope if no one’s there\, $10 or $9 for seniors. Note that most public libraries have a pass you can check out that allows free day use parking. Western Kingbird\, Western Bluebird and Bullock’s Oriole have been seen there\, plus raptors. Then we’ll drive to the site of a rookery where\, in past years\, several species of heron and egret have nested\, along with cormorants. There are picnic tables from which you can enjoy the rookery while having a snack. This trip is good for beginners. \nHike Rating: 1\, Easy. A few walks on level trails adding up to probably less than a mile.\nElevation change: N/A\nLeader: Mona Lange\, 510-414-2959\nMeet: Brannan Island State Recreation Area. GPS: 38.11017164265391\, -121.6966400433512\nDirections: Central Contra Cost take Hwy 4 towards Antioch. Where the highway forks take Hwy 160 north over the Antioch Bridge (toll). After crossing the bridge\, continue about 7 miles to Brannan Island. The park entrance is on your right\, 1/4 mile after crossing 3-Mile Slough. Meet at the parking lot\, 200 yards east of Hwy 160. \nThis field trip is limited to 12 participants. Register HERE:\nhttps://www.eventbrite.com/e/birding-brannan-island-delta-rookery-tickets-1985233802745 \n(Image of Great Blue Heron by Warren Regelmann)
URL:https://mtdiablobirds.org/event/mdba-field-trip-brannan-island-delta-rookery-may-2026/
LOCATION:Brannan Island State Recreation Area\, 17645 CA-160\, Rio Vista\, CA\, 94571
CATEGORIES:Birding,Field Trips
ATTACH;FMTTYPE=image/jpeg:https://mtdiablobirds.org/wp-content/uploads/2025/05/GBHE_MVSD_Regelmann-scaled.jpg
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20260505T083000
DTEND;TZID=America/Los_Angeles:20260505T130000
DTSTAMP:20260318T235843Z
CREATED:20260318T235625Z
LAST-MODIFIED:20260318T235843Z
UID:9380-1777969800-1777986000@mtdiablobirds.org
SUMMARY:MDBA Field Trip -- West Briones Regional Park
DESCRIPTION:A visit to the west entrance of Briones Regional Park in the spring offers views of spring wildflowers and spring birds. Lazuli Buntings are often present\, along with flycatchers\, vireos\, and many other species. \nThere’s a nice picnic area here so consider bringing lunch and staying a while. It might get warm before our walk is done\, so bring sufficient water. \nLeader: Cheryl Abel\nRating: Category 2–moderate hiking over dirt and gravel trails with mild slopes.\nElevation change: 200 feet\nMeet: Bear Creek Staging Area parking lot\nDirections: From SR 24 in Orinda\, drive north on Camino Pablo about 2.25 miles\, turn right on Bear Creek Road\, continue for 4.5 miles to park entrance. Drive to farthest parking lot on the right. \nThis field trip is limited to 15 participants. Participants must acknowledge the MDBA Liability Waiver (available during registration). Register HERE:\nhttps://www.eventbrite.com/e/birding-west-briones-regional-park-tickets-1985181520367 \n(Lazuli Bunting photo by Jerry Britten)
URL:https://mtdiablobirds.org/event/mdba-field-trip-west-briones-regional-park-may-2026/
LOCATION:Bear Creek Staging Area Briones\, Bear Creek Staging Area\, 16 Bear Creek Rd\, Lafayette\, CA\, 94549\, United States
CATEGORIES:Birding,Field Trips
ATTACH;FMTTYPE=image/jpeg:https://mtdiablobirds.org/wp-content/uploads/2025/04/LABU_MorganTerritory_JerryBritten.jpg
GEO:37.925638;-122.159397
X-APPLE-STRUCTURED-LOCATION;VALUE=URI;X-ADDRESS=Bear Creek Staging Area Briones Bear Creek Staging Area 16 Bear Creek Rd Lafayette CA 94549 United States;X-APPLE-RADIUS=500;X-TITLE=Bear Creek Staging Area\, 16 Bear Creek Rd:geo:-122.159397,37.925638
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20260507T080000
DTEND;TZID=America/Los_Angeles:20260507T130000
DTSTAMP:20260422T234323Z
CREATED:20260319T000029Z
LAST-MODIFIED:20260422T234323Z
UID:9382-1778140800-1778158800@mtdiablobirds.org
SUMMARY:MDBA Field Trip -- East Contra Costa County
DESCRIPTION:Note: this itinerary is subject to change\, as migrating birds arrive and opportunities appear. Watch the May Quail\, and your email in the days before the outing\, for possible updates. \nWe plan to meet at Big Break/Delta Science Center. After birding there we’ll drive to Marsh Creek Trail and\, if time permits\, Bethel Island. These locations are usually good for waterfowl\, raptors and some passerines not easily found elsewhere in the county.\nIt may get hot by mid-day. \nHike Rating: 1-Easy\nElevation change: N/A\nLeaders: Randy Huey\, 925-518-8439\nMeet: Big Break parking lot in Oakley at 8 AM\nDirections: Take Highway 4 east toward Stockton/Pittsburg\, after Antioch take right Exit 30 toward CA-160/Sacramento/Rio Vista. Take Exit 1A\, East 18th/Main Street\, turn right at the bottom of the exit onto Main Street\, proceed east a little over 1 mile\, then turn left onto Big Break Road. Turn into Big Break Regional Shoreline/Delta Science Center just past the last houses on the right. \nThis field trip is limited to 20 participants. Register HERE:\nhttps://www.eventbrite.com/e/birding-eastern-contra-costa-county-tickets-1985236060498 \n(Photo: Western Kingbird by Mona Lange)
URL:https://mtdiablobirds.org/event/mdba-field-trip-east-contra-costa-county-may-2026/
LOCATION:Big Break Regional Shoreline\, 69 Big Break Road\, Oakley\, CA\, 94561\, United States
CATEGORIES:Birding,Field Trips
ATTACH;FMTTYPE=image/jpeg:https://mtdiablobirds.org/wp-content/uploads/2025/03/WEKI_LagoonValley_Lange-scaled.jpg
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20260507T190000
DTEND;TZID=America/Los_Angeles:20260507T203000
DTSTAMP:20260418T033655Z
CREATED:20260418T032927Z
LAST-MODIFIED:20260418T033655Z
UID:9391-1778180400-1778185800@mtdiablobirds.org
SUMMARY:Monthly Program: May 2026
DESCRIPTION:Rusty-collared Seedeater. Photo by Steve Hunter. \nBobcat film preview and Total Uruguay\nMount Diablo Bird Alliance will meet Thursday\, May 7 in the Camellia Room at the Gardens at Heather Farm\, 1540 Marchbanks Drive\, Walnut Creek\, CA 94598. \n\n\n6:30 PM Doors Open\n7:00 PM Bobcat Film preview\n7:15 PM Announcements \n7:30 PM Refreshments and Raffle\n7:45 PM Main Program: Total Uruguay \n*as a conservation organization we encourage you to bring your own mug for coffee or tea \nOur meeting will begin with a short preview of an upcoming film about bobcats. Vishal Subramanyan is a National Geographic Young Explorer and Osher Fellow at the California Academy of Sciences. For nearly a decade\, he’s been observing the life of an urban bobcat living along the Diablo Range\, and is now producing a long-term documentary film that follows this animal’s story. In this short pre-program presentation\, Vishal will share a teaser from the film and behind-the-scenes footage from years of fieldwork\, highlighting what bobcats can teach us about coexistence in the East Bay Area. He’ll also touch on habitat connectivity and the ripple effects of rodenticides on local wildlife\, and share what’s ahead for completing the film. \nMain Program: Total Uruguay with Viviana Wolinsky \nViviana Wolinsky and Steve Hunter began birding within the last decade\, combining this new passion with their love of travel. Steve focuses on bird photography and provided all the bird images for the presentation. Viviana has a life-list of over 3\,000 birds\, more than half of which she observed in South America. She has visited Uruguay twice for birding\, most recently on the Golden Gate Birding Alliance’s (GGBA) “Total Uruguay” trip\, and currently holds the number 121 spot on the eBird lifetime list for the country. \nBoth are active GGBA volunteers. Viviana serves as an assistant instructor for Steve’s intermediate birding and sparrow classes. Together\, they have led numerous local field trips and a special Birdathon trip to Colorado. Viviana also serves as the co-compiler for the Oakland Christmas Bird Count. \nThis presentation offers a preview of what to expect on a birding trip to Uruguay such as GGBA’s upcoming 2027 trip. While the country is roughly the size of Washington state with a climate similar to California’s\, it possesses a wide range of habitats\, including the Pampas\, Atlantic Forest\, savannas\, wetlands\, and palm tree forests. This diversity allows for a great variety of bird species to be seen easily across short distances. Uruguay is also a vital feeding and breeding destination for many migratory species. \n\n\nStraight-billed Reedhaunters. Photo by Steve Hunter.
URL:https://mtdiablobirds.org/event/monthly-program-may-2026/
LOCATION:The Camellia Room at The Gardens at Heather Farm\, 1540 Marchbanks Drive\, Walnut Creek\, CA\, 94598\, United States
CATEGORIES:Monthly Program
ATTACH;FMTTYPE=image/jpeg:https://mtdiablobirds.org/wp-content/uploads/2026/04/Rusty-collared-Seedeater-scaled.jpg
ORGANIZER;CN="Ariana Rickard":MAILTO:arianajrickard@gmail.com
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20260511T080000
DTEND;TZID=America/Los_Angeles:20260511T130000
DTSTAMP:20260422T234322Z
CREATED:20260422T231907Z
LAST-MODIFIED:20260422T234322Z
UID:9398-1778486400-1778504400@mtdiablobirds.org
SUMMARY:MDBA Field Trip -- Pine Canyon
DESCRIPTION:Pine Canyon\, which encompasses the Castle Rock (EBRPD) recreation area and Diablo Foothills Regional Park\, provides rich habitat for spring migrants and returning summer residents. Warbling Vireos and their cousins\, Cassin’s Vireos\, both nest within the canyon. We also hope to find orioles\, flycatchers\, wrens\, and various warblers—and if we’re lucky\, a Lazuli Bunting or a Peregrine Falcon. \nPlease bring water\, snacks\, and a lunch if you would like to enjoy the shady picnic tables in the park after our trek. \nTrail Rating: 2–3. Out-and-back along a wide dirt trail\, with some short climbs. We’ll need to cross little Pine Creek several times – without bridges. These crossings are not deep but can be muddy or a bit adventuresome\, depending on recent rains.\nElevation Change: 200 feet\, in a very gradual climb\nLeader: Ted Robertson\, 925-899-1872\nDirections: From Ygnacio Valley Road\, drive south on either Walnut Avenue or Oak Grove Road to the traffic circle. Continue south on Castle Rock Road\, pass Northgate High School\, then drive to the end of the road. \nThis field trip is limited to 18 participants. \nRegister here: https://www.eventbrite.com/e/birding-pine-canyon-tickets-1987369743401 \n(Townsend’s Warbler photo by Jerry Britten)
URL:https://mtdiablobirds.org/event/mdba-field-trip-pine-canyon-may-2026/
LOCATION:Diablo Foothills Regional Park Trailhead Parking\, 1700 Castle Rock Rd\, Walnut Creek\, 94598
CATEGORIES:Birding,Field Trips
ATTACH;FMTTYPE=image/png:https://mtdiablobirds.org/wp-content/uploads/2021/06/Townsends-Warbler-Brentwood-Jerry-Britten.png
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20260515T083000
DTEND;TZID=America/Los_Angeles:20260515T120000
DTSTAMP:20260422T232928Z
CREATED:20260422T232413Z
LAST-MODIFIED:20260422T232928Z
UID:9400-1778833800-1778846400@mtdiablobirds.org
SUMMARY:MDBA Field Trip — Shadow Cliffs Rookeries
DESCRIPTION:Every year\, Herons and Cormorants nest in the tall trees within the park’s riparian area. We will visit these rookeries\, hopefully catching glimpses of chicks within the nests. The park also hosts several Wood Duck nest boxes; with luck\, we may spot ducklings and other young waterfowl as well. \nShadow Cliffs\, located in Pleasanton\, can get quite hot this time of year. Please dress appropriately (a broad-brimmed hat is highly recommended) and bring sunscreen and plenty of water. There is a restroom located near the trailhead. \nPlease factor in the potential for traffic when planning your departure. \nParking Fee: $5 per vehicle. \nTrail Rating: 2 – One hill to get onto the levee trail and just over a mile of walking with few places to sit.\nLeader: Elisa Fernandes-McDade (elisa.fernandesmcdade@gmail.com)\nMeet: Small shade structure near Levee Trail trailhead and next to the shaded/solar panel parking lot\nGPS: 37.9277763\, -122.0644239. Shadow Cliffs Regional Park\, 2500 Stanley Blvd\, Pleasanton\, CA 94566 USA\nDirections: From Walnut Creek\, take I-680 South. In Dublin\, take Exit 30 to merge onto I-580 East toward Stockton. Stay on the I-580 for about 3 miles\, then take Exit 47 for Santa Rita Rd toward Tassajara Rd. After about 1.5 miles\, take a left onto Valley Ave. After about 1 mile\, take another left onto Stanley Blvd. Continue for 1 mile\, then turn right into the Shadow Cliffs entrance. \nThere will be a large\, brown sign with white lettering. After paying at the entry kiosk and going through the roundabout\, turn right into the parking lot with solar panels near the base of the hills. \nThis trip is limited to 20 participants. Carpooling is encouraged! \nRegister here: https://www.eventbrite.com/e/birding-shadow-cliffs-registration-1987575958195 \n(Photo of Great Blue Heron by Warren Regelmann)
URL:https://mtdiablobirds.org/event/mdba-field-trip-shadow-cliffs-rookeries-may-2026/
LOCATION:Shadow Cliffs Regional Recreation Area\, 2500 Stanley Blvd\, Pleasanton\, CA\, 94566\, United States
CATEGORIES:Birding,Field Trips
ATTACH;FMTTYPE=image/jpeg:https://mtdiablobirds.org/wp-content/uploads/2025/05/GBHE_MVSD_Regelmann-scaled.jpg
ORGANIZER;CN="Elisa Fernandes-McDade":MAILTO:elisa.fernandesmcdade@gmail.com
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20260521T150000
DTEND;TZID=America/Los_Angeles:20260521T170000
DTSTAMP:20260423T011046Z
CREATED:20260423T001051Z
LAST-MODIFIED:20260423T011046Z
UID:9404-1779375600-1779382800@mtdiablobirds.org
SUMMARY:Student Cello Recital Fundraiser for MDBA
DESCRIPTION:Olivia Qian\, a junior at San Ramon Valley High School (SRVHS) and founder of the school’s bird-watching club\, is hosting a solo cello recital fundraiser on Thursday\, May 21\, 2026\, at 3:00 PM. The performance will take place at the San Ramon Valley High School Performing Arts Center and will feature masterworks by Bach\, Saint-Saëns\, Elgar\, and Lalo. \nAll proceeds from the event will be donated to support the conservation programs of the Mount Diablo Bird Alliance. In addition to the performance\, MDBA members will be on-site to share information about local bird conservation efforts and how you can get involved. \nJoin us for an afternoon of beautiful music and community spirit in support of birds and their habitats. \nSuggested donation: $7 online or bring cash in exact change. \nView the fundraiser flyer for additional details.
URL:https://mtdiablobirds.org/event/student-cello-recital-fundraiser-for-mdba/
LOCATION:San Ramon Valley High School Performing Arts Center\, 501 Danville Blvd\, Danville\, CA\, 94526
CATEGORIES:Outreach
ATTACH;FMTTYPE=image/png:https://mtdiablobirds.org/wp-content/uploads/2026/04/olivia_qian2.png
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20260530T083000
DTEND;TZID=America/Los_Angeles:20260530T150000
DTSTAMP:20260422T233534Z
CREATED:20260422T233100Z
LAST-MODIFIED:20260422T233534Z
UID:9402-1780129800-1780153200@mtdiablobirds.org
SUMMARY:MDBA Field Trip -- Point Reyes
DESCRIPTION:Point Reyes is one of the premier birding locations in Northern California and a renowned spot for finding rarities during migration—such as the Prairie Warbler pictured above (image by Beth Branthaver). MDBA visits at least twice a year; on our spring trip\, we hope to observe northbound migrants as well as resident birds in their finest breeding plumage. \nThe exact itinerary will depend on the weather\, but after checking Drakes Beach and the lagoon behind it\, we will likely visit the Lighthouse area and the “fish docks.” After lunch\, we may walk down the Avenue of Cypresses to the historic RCA building. \nPlease bring water and lunch\, as this area is remote. The weather at the Point is highly changeable; bring warmer clothing than you think you’ll need—ensuring you include a windproof layer—as well as sun protection. \nTrail Rating: 2 — up to a mile total walk\, almost entirely on paved roads but with some moderate grade.\nElevation Change: 100 ft\nLeader: Matt Tarlach\, mdbafieldtrips@gmail.com\nMeet: Kenneth C. Patrick Visitor Center\, Drake’s Beach\nGPS: 38.027828257127936\, -122.96201741318059\nDirections: Depending on your starting point\, take the best route to San Rafael and go North on US 101. From 101\, take Lucas Valley Road to Nicasio. At the reservoir\, turn left. Follow signs to Point Reyes Station\, and when you get to town turn left onto US-1. After passing through town (the Bovine Bakery is a tasty stop for breakfast pastries)\, turn right from US-1 onto Sir Francis Drake Blvd and follow it for 15 miles to Drakes Beach Road. \nDue to limited parking\, this trip is limited to 12 participants. Carpooling is encouraged! \nRegister here: https://www.eventbrite.com/e/point-reyes-registration-1987575551980 \n(Prairie Warbler photo by Beth Branthaver)
URL:https://mtdiablobirds.org/event/mdba-field-trip-point-reyes-may-2026/
LOCATION:Kenneth C. Patrick Visitor Center\, 1 Drake Beach Rd\, Inverness\, CA\, 94937\, United States
CATEGORIES:Birding,Field Trips
ATTACH;FMTTYPE=image/png:https://mtdiablobirds.org/wp-content/uploads/2023/08/prairie-warbler-beth-branthaver.png
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20260604T190000
DTEND;TZID=America/Los_Angeles:20260604T203000
DTSTAMP:20260514T220257Z
CREATED:20260514T215708Z
LAST-MODIFIED:20260514T220257Z
UID:9414-1780599600-1780605000@mtdiablobirds.org
SUMMARY:Monthly Program: June 2026
DESCRIPTION:Mount Diablo Bird Alliance will meet Thursday\, June 4 in the Camellia Room at the Gardens at Heather Farm\, 1540 Marchbanks Drive\, Walnut Creek\, CA 94598. \n\n\n6:30 PM Doors Open\n7:00 PM Announcements \n7:15 PM Refreshments and Raffle\n7:30 PM Main Program: Gardening for Wildlife\n*as a conservation organization we encourage you to bring your own mug for coffee or tea \nMain Program: Bringing Nature Home with Kathy Kramer \nWant to learn how to create a beautiful garden that saves water\, money\, time\, and the planet? Join us on June 4 for a program with Kathy Kramer\, who will share how we can create beautiful water conserving native plants gardens that are teeming with life. By creating a wildlife friendly garden\, you can make the world a better place for our children and grandchildren. \nIn 2005\, Ms. Kramer founded\, and she still coordinates\, the Bringing Back the Natives Garden Tour. Through this program more than 225\,000 visits have been made to native plant gardens in Alameda and Contra Costa counties. \nFor nearly forty years\, Ms. Kramer has been developing programs that educate Bay Area residents about local environmental issues. The programs developed under Ms. Kramer’s leadership have received local\, state\, and national awards\, including: \n\nthe Department of Pesticide Regulation’s Environmental Innovator’s Award\,\nthe Governor’s Environmental and Economic Leadership Award\,\nthe National Wetlands Award for Education/Outreach Award\, and\nthe Jefferson Award
URL:https://mtdiablobirds.org/event/monthly-program-june-2026/
LOCATION:The Camellia Room at The Gardens at Heather Farm\, 1540 Marchbanks Drive\, Walnut Creek\, CA\, 94598\, United States
CATEGORIES:Monthly Program
ATTACH;FMTTYPE=image/jpeg:https://mtdiablobirds.org/wp-content/uploads/2026/05/IMG_0645.jpeg
ORGANIZER;CN="Ariana Rickard":MAILTO:arianajrickard@gmail.com
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20260607T073000
DTEND;TZID=America/Los_Angeles:20260607T100000
DTSTAMP:20260527T005644Z
CREATED:20260527T005243Z
LAST-MODIFIED:20260527T005644Z
UID:9430-1780817400-1780826400@mtdiablobirds.org
SUMMARY:MDBA Field Trip -- Search for the Silky Flycatcher
DESCRIPTION:Phainopeplas are the only representatives of the silky flycatcher family that are regularly found in the US. In Contra Costa County\, they are most commonly found east of Mount Diablo in winter\, but in summer they can also be found locally in select places. We’ll search Lime Ridge for Phainopeplas early in the day before the heat kicks in. Keep an eye out for clumps of mistletoe in the oaks\, which the birds love. We’ll also have a chance to see other summer visitors including Ash-throated Flycatcher\, Western Kingbird\, and multiple swallow species. \nWater\, sunscreen\, and shade are musts on this hike! Even by late morning it can get quite warm. \nTrail Rating: 3 – Dry\, hilly\, potentially hot\, and more than a mile.\nLeader: Elisa Fernandes-McDade\, elisa.fernandesmcdade@gmail.com\nMeeting Point: 5150 Montecito Dr\, Concord\, CA 94521. There are multiple access points along Lime Ridge. We’ll meet at the parking lot just off Ygnacio Valley Road.\nGPS: 37.94668064840542\, -121.99249383706143 \nDirections: (Northbound) Take I-680 north. Take Exit 44 for Rudgear Rd and continue on South Broadway for 1 mile. Take a right onto Newell Ave and be prepared to take the next left in 300 ft onto Newell Hill Pl. Turn left onto San Miguel Dr. Be prepared to take the next right in 300ft onto Sierra Dr. In half a mile\, turn left onto Walnut Blvd and continue for another half mile before turning left onto Ygnacio Valley Blvd. Continue for 5 miles. Turn right onto Montecito Dr. The destination will be on your right just after the intersection. \nThis outing is limited to 15 people. Register HERE:\nhttps://www.eventbrite.com/e/search-for-the-silky-flycatcher-tickets-1989778836062 \n(Image of Phainopepla by Maren Smith)
URL:https://mtdiablobirds.org/event/mdba-field-trip-search-for-the-silky-flycatcher-jun-2026/
LOCATION:Montecito Dr Parking Lot (Lime Ridge)\, 5150 Montecito Dr\, Concord\, CA\, 94521
CATEGORIES:Birding,Field Trips
ATTACH;FMTTYPE=image/jpeg:https://mtdiablobirds.org/wp-content/uploads/2026/05/PHAI_LakeSolano_SMith-scaled.jpg
ORGANIZER;CN="Elisa Fernandes-McDade":MAILTO:elisa.fernandesmcdade@gmail.com
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20260701T080000
DTEND;TZID=America/Los_Angeles:20260701T110000
DTSTAMP:20260601T225343Z
CREATED:20260527T002812Z
LAST-MODIFIED:20260601T225343Z
UID:9420-1782892800-1782903600@mtdiablobirds.org
SUMMARY:MDBA Field Trip -- Least Terns and Hayward Shoreline
DESCRIPTION:We’ll join a public event hosted by the East Bay Regional Parks District: a naturalist-led walk to the Least Tern colony at the Hayward Shoreline. This is a rare opportunity to be escorted behind the protective fences and get closer to the colony than is usually possible. After the public event\, which is scheduled to end at 11:00 AM\, we’ll bird a second location along the Alameda County bayshore\, to be determined depending on conditions. \nMDBA members\, please sign up at the link below\, so we know how many are coming and can inform you about the second part of the trip\, as well as possible carpooling. If you just want to join the EBRPD event\, it’s free and open to the public. More info here:\nhttps://anc.apm.activecommunities.com/ebparks/activity/search/detail/59624?onlineSiteId=0&from_original_cui=true \nTrail rating: 2—Moderate. Over a mile walking on flat levee trails.\nElevation change: N/A\nLeader: Matt Tarlach\, mdbafieldtrips@gmail.com\nMeet: Hayward Shoreline Interpretive Center\nGPS: 37.623494087391975\, -122.13715190919702 \nDirections: Take the best route from your location toward the San Mateo Bridge. From Hwy 92 West—before reaching the bridge—Take Exit 24 for Clawiter Road. At the exit\, continue straight onto Breakwater Road. 0.2 miles beyond the exit you’ll need to make a left to stay on Breakwater Road. Continue to the Hayward Shoreline Interpretive Center. \nMDBA members sign up here: https://www.eventbrite.com/e/least-terns-and-hayward-shoreline-tickets-1989744976788 \n(Image by Linda Tanner – https://creativecommons.org/licenses/by/2.0)
URL:https://mtdiablobirds.org/event/mdba-field-trip-least-terns-and-hayward-shoreline-jul-2026/
LOCATION:Hayward Regional Shoreline Interpretive Center\, 4901 Breakwater Ave\, Hayward\, CA\, 94541
CATEGORIES:Birding,Field Trips
ATTACH;FMTTYPE=image/jpeg:https://mtdiablobirds.org/wp-content/uploads/2026/05/tern_linda_tanner.jpg
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20260802T080000
DTEND;TZID=America/Los_Angeles:20260802T113000
DTSTAMP:20260601T225724Z
CREATED:20260527T191809Z
LAST-MODIFIED:20260601T225724Z
UID:9438-1785657600-1785670200@mtdiablobirds.org
SUMMARY:MDBA Field Trip -- Pt. Pinole: Shorebirds in the Shade
DESCRIPTION:We’ll search for shorebirds in the shade of the fragrant eucalyptus groves that line the shores of Point Pinole Regional Park. Shorebird migration is getting underway at this time of year\, with peeps\, plovers\, and more starting to trickle in from the north. We’ll scan the beach as the tide rises for shorebirds and marine ducks. Point Pinole can also yield surprises\, like the Bobolink that lingered there in 2024. \nThe trail is narrow\, dusty\, and rocky at points. There are not many places to sit and rest along the way. There is a bathroom and water fountain at the trailhead. Bring plenty of water and sunscreen. \nTrail Rating: 2 – Generally flat but over a mile walking.\nLeader: Elisa Fernandes-McDade\, elisa.fernandesmcdade@gmail.com\nMeeting Point: Atlas Road parking lot\, map address 3000 Atlas Road\, in Point Pinole Regional Shoreline\, Richmond.\nGPS: 37.999968\, -122.356301\nDirections: From Central Contra Costa\, head west on Highway 4. Then\, take exit 1B to merge onto I-80 West toward San Francisco. After about 4 miles\, take exit 20 toward I-580 W. After about half a mile\, merge onto Richmond Parkway. After about a mile\, take a right onto Atlas Road and keep driving straight\, passing through the park gate\, until you reach the unpaved parking lot on your right at the end of the road. \nThis outing is limited to 15. Register HERE:\nhttps://www.eventbrite.com/e/birding-point-pinole-shorebirds-in-the-shade-registration-1989779236259 \n(Image by Bill Kezer)
URL:https://mtdiablobirds.org/event/mdba-field-trip-pt-pinole-shorebirds-in-the-shade-aug-2026/
LOCATION:Point Pinole Regional Shoreline (Atlas Road parking lot)\, 3000 Atlas Road\, Richmond\, CA\, 94806
CATEGORIES:Birding,Field Trips
ATTACH;FMTTYPE=image/jpeg:https://mtdiablobirds.org/wp-content/uploads/2025/05/GRYE_Cosumnes_Kezer.jpg
ORGANIZER;CN="Elisa Fernandes-McDade":MAILTO:elisa.fernandesmcdade@gmail.com
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20260822T090000
DTEND;TZID=America/Los_Angeles:20260822T150000
DTSTAMP:20260527T005206Z
CREATED:20260527T003758Z
LAST-MODIFIED:20260527T005206Z
UID:9423-1787389200-1787410800@mtdiablobirds.org
SUMMARY:MDBA Field Trip -- Bodega Bay
DESCRIPTION:Enjoying the fresh sea air\, we’ll stop at several points around Bodega Bay to look for shorebirds\, including Black Oystercatcher and Surfbird\, as well as terns\, gulls\, cormorants\, near-shore pelagics and more. Bring liquids\, a picnic lunch\, and sunscreen. \nTrail rating: Category 1–moderate walking at several car stops.\nElevation change: N/A\nLeader: Matt Tarlach\, mdbafieldtrips@gmail.com\nMeet: Meet at the back deck at The Tides Restaurant. Park at the restaurant and walk back to the water side.\nGPS: 38.3284021500329\, -123.04468508653804 \nIf you’re interested in carpooling from the MDBA home area\, contact the leader. There will also be an opportunity to share cars after we meet at The Tides. \nDirections: From Concord/Walnut Creek\, take I-680 across the Benicia Bridge\, go west on I-780 toward Vallejo. In Vallejo take I-80 toward Sacramento\, then exit to Route 37 west. Drive west on 37 about 15 miles to Lakeville Road\, and turn right. In Petaluma\, turn left on E. Washington Street and continue on Bodega Road\, Valley Ford Road and SR 1 to Bodega Bay. Walk through or around The Tides Restaurant to find the group on the deck in back. Bring lunch\, plenty of liquids\, and sunscreen. \nThis field trip is limited to 15 participants. Non-MDBA members are welcome\, with pre-registration. \nRegister HERE: https://www.eventbrite.com/e/birding-bodega-bay-registration-1989743730059 \n(Image by Pam Lorenz)
URL:https://mtdiablobirds.org/event/mdba-field-trip-bodega-bay-aug-2026/
LOCATION:Tides Restaurant Bodega Bay\, 835Bay Highway\, Bodega Bay\, CA\, 94923\, United States
CATEGORIES:Birding,Field Trips
ATTACH;FMTTYPE=image/jpeg:https://mtdiablobirds.org/wp-content/uploads/2026/05/loon_pam_lorenz-scaled.jpg
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20260903T073000
DTEND;TZID=America/Los_Angeles:20260903T110000
DTSTAMP:20260527T004955Z
CREATED:20260527T004426Z
LAST-MODIFIED:20260527T004955Z
UID:9426-1788420600-1788433200@mtdiablobirds.org
SUMMARY:MDBA Field Trip -- Jewel Lake
DESCRIPTION:We’ll walk along Wildcat Creek and around Jewel Lake in Tilden Park\, hoping to find fall warblers\, Red-Breasted and Pygmy Nuthatch\, and with luck a Pacific Wren. \nThis trip is suitable for beginning birders. Bring binoculars if you have them\, or if you need to borrow a pair contact the leader beforehand so he knows to bring extra. People who are interested in the birds but are not members of MDBA are very welcome to join us. Please be sure to pre-register. \nTrail rating: 2\, Moderate. About 1.5 miles walking on easy\, mostly flat paved and gravel trails.\nElevation change: N/A\nLeader: Matt Tarlach\, mdbafieldtrips@gmail.com\nMeet: Parking lot at the end of Central Park Drive in Tilden Regional Park. \nDirections: From Central Contra Costa take Highway 24 to exit at Fish Ranch Road. Turn right and go up the hill 0.7mi. Turn Right on Grizzly Peak Blvd and follow the curving road for 4.1mi. Turn Right on Muir Way\, then Left on Park Hills Road. The road forks; be sure to stay on Park Hills Road. Watch for signs to “Little Farm” which is near the meeting point. Park Hills Road ends at Wildcat Canyon Road\, at an odd intersection. Turn Right on Wildcat Canyon\, then IMMEDIATELY Left onto Central Park Drive. Continue about 1 mile on Central Park to the parking lot at the end\, which is the meeting point. \nThis birdwalk is limited to 15 participants. Register HERE: https://www.eventbrite.com/e/tilden-nature-area-berkeley-tickets-1989744347907 \n(Wilson’s Warbler photo by Jerry Britten)
URL:https://mtdiablobirds.org/event/mdba-field-trip-jewel-lake-sep-2026/
LOCATION:Jewel Lake\, Tilden Nature Area\, California\, 600 Canon Dr\, Berkeley\, CA 94708\, Berkeley\, CA\, 94708\, United States
CATEGORIES:Birding,Field Trips
ATTACH;FMTTYPE=image/jpeg:https://mtdiablobirds.org/wp-content/uploads/2019/03/wilsons-warbler.jpg
END:VEVENT
END:VCALENDAR