Subject line says it all. 3rd cycle or so. Ethan

We have been monitoring three hummingbird nests for several weeks in this Walnut Creek park. Paul Ehrlich, in The Birder's Handbook, says incubation is 14-19 days. Yesterday numerous o servers saw the

Mount Diablo Audubon society made a visit to Martinez this morning to see the birds on two sides of I-680. We had lots of Tree Swallows over Moorhen Marsh, the ponds owned by Mt. View Sanitary. Some o

Over the weekend I birded both Back Diamond Mines and Patterson Pass by bike. In both areas - especially Black Diamond Mines - the wildflower show (lupine, shooting star , owls clover and the onion fa

Today's 0700 to 0900 walk at Sycamore Grove Park in Livermore gave me a few treats. Two GREAT BLUE HERONs interacted mid air and I got photos of the session. It seems to me that the one originally per

My first Swallow in Heather Farm was last week, and I could not even identify it to species. As soon as I saw it, it went behind a tree and I did not see it circle around. Ted Robertson and Bob Dunn h

Yesterday in the late afternoon there were some small Sparrows along the SF Bay Trail as it skirts the Marina Bay housing development. I remembered being told a year ago at this time there were some L

Bell's Sparrows are presumably always present along Southgate Road in the chaparral belt below the entrance kiosk to Mt Diablo State Park, but they have been more vocal (more calling than singing) my

Adult male rufous very feisty with our resident Anna's at feeder. Gray day, brilliant bird. Mouth of Niles Canyon. John Cant Fremont

Nat Weber and I spent close to two and a half hours birding Patterson Pass Road from North Greenville Road to the San Joaquin County line just past the PG&E facility from 9:00am to 11:20am. tt was ove

This afternoon there were two CASSIN'S KINGBIRDS at the PG&E Tesla Substation at the east end of Patterson Pass Road. Photos: https://www.inaturalist.org/observations/107733140 On Sat, 26 Feb 2022 18:

Today, birding my yard patch during the morning yard cat walks, some new birds either arrived or are passing through. Today was the first day I have heard orange-crowned warblers from the gully next t

As Paul Schorr said in a post earlier this week, the spring wildflowers bloom is in full force in east bay parks. If you want to see spring flowers, the next several weeks is the time to go! It seems

Yesterday, Nancy and I birded Contra Loma R. P. in Antioch. The hillsides are glorious with many wildflowers blooming. Following is a list of birds seen or heard. Canada Goose American Wigeon Mallard

Yesterday, Nancy and I birded Contra Loma R. P. in Antioch. The hillsides are glorious with many wildflowers blooming. Following is a list of birds seen or heard. Canada Goose American Wigeon Mallard

Patterson Pass impressively productive today after slow start, with Mountain Bluebirds, Lark Sparrow, Loggerhead Shrike, and Cassin's Kingbird, as well as suspected Merlin. https://ebird.org/checklist

We all know how cold it is, but there are currently three active Anna's Hummingbird nests in this Walnut Creek park. There are no known chicks yet, so far it seems to be incubation. It has been at lea

Hi, is there anyone in or near Alameda that can help this injured Bufflehead. He is having trouble moving around and in a high traffic area. Dropped pin https://goo.gl/maps/DdXPiozWFwHtcq817 Ken copen

Early Sunday morning 2/20/22, we observed a pair of Phainopeplas on the north side of Mt. Diablo State Park just south of Murchio Road at 37.91898, -121.93774. The male was first heard calling and the

Dear East Bay Birders, Bob Lewis and Bruce Mast have created and refined a terrific 6 week lecture course on the evolution of birds, starting with dinosaurs in Pangea and finishing with California. It