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X-WR-CALDESC:Events for Mount Diablo Bird Alliance
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DTSTART;TZID=America/Los_Angeles:20260402T190000
DTEND;TZID=America/Los_Angeles:20260402T203000
DTSTAMP:20260405T123832
CREATED:20260327T184526Z
LAST-MODIFIED:20260327T185311Z
UID:9384-1775156400-1775161800@mtdiablobirds.org
SUMMARY:Monthly Program: April 2026
DESCRIPTION:How the East Bay Got Its Regional Parks\nAmelia Marshall\n\n\n\nMount Diablo Bird Alliance will meet Thursday\, April 2 in the Camellia Room at the Gardens at Heather Farm\, 1540 Marchbanks Drive\, Walnut Creek\, CA 94598. \n6:30 PM Doors Open\n7:00 PM Announcements\n7:15 PM Refreshments and Raffle\n7:30 PM Main Program: History of the East Bay Regional Park District\n*as a conservation organization we encourage you to bring your own mug for coffee or tea\n  \nLearn about the founding of the East Bay Regional Park District with a presentation about the history of the Park District. \nAmelia Sue Marshall is a 27-year volunteer for the East Bay Regional Park District\, with the Volunteer Trail Patrols and the District archives and history center. There\, a team of park district retirees\, staff members\, and others curate materials\, develop oral histories\, and recall stories that rarely appear in official documents. She was awarded the 2023 “Outstanding Volunteer” award by the California Association of Recreation and Park Districts. \nHer first book on local history was Oakland’s Equestrian Heritage (Arcadia Publishing 2008). The second is East Bay Hills: A Brief History (The History Press\, 2017)\, which describes the origins of parks in Oakland\, Moraga\, and Castro Valley. She is currently collaborating with the Verona Band of the Muwekma Ohlone Tribe. \nAmelia serves as trails chair for California State Horsemen’s Association. Region 5 (Alameda and Contra Costa Counties). She sits on three nonprofit boards: the Regional Park Association\, the Oakland Heritage Alliance\, and the Friends of Joaquin Miller Park. She and her family live on Peralta Creek in Oakland with a plus-size German Shepherd named Chewy.
URL:https://mtdiablobirds.org/event/monthly-program-april-2026/
LOCATION:The Camellia Room at The Gardens at Heather Farm\, 1540 Marchbanks Drive\, Walnut Creek\, CA\, 94598\, United States
CATEGORIES:Monthly Program
ORGANIZER;CN="Ariana Rickard":MAILTO:arianajrickard@gmail.com
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20260407T083000
DTEND;TZID=America/Los_Angeles:20260407T123000
DTSTAMP:20260405T123832
CREATED:20260216T032028Z
LAST-MODIFIED:20260216T032216Z
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: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:20260405T123832
CREATED:20260216T032334Z
LAST-MODIFIED:20260216T032511Z
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: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:20260405T123832
CREATED:20260216T032631Z
LAST-MODIFIED:20260216T032815Z
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: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:20260405T123832
CREATED:20260216T032938Z
LAST-MODIFIED:20260216T033135Z
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:Field Trips
ATTACH;FMTTYPE=image/jpeg:https://mtdiablobirds.org/wp-content/uploads/2024/03/WEKI_DelPuerto_Aronow.jpg
GEO:37.4626529;-121.1857453
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END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20260423T090000
DTEND;TZID=America/Los_Angeles:20260423T133000
DTSTAMP:20260405T123832
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:20260405T123832
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:20260405T123832
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:20260405T123832
CREATED:20260319T000029Z
LAST-MODIFIED:20260319T000214Z
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:Field Trips
ATTACH;FMTTYPE=image/jpeg:https://mtdiablobirds.org/wp-content/uploads/2025/03/WEKI_LagoonValley_Lange-scaled.jpg
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