This morning at 5:20 I heard a pair of Great Horned Owls dueting nearby. They were immediately followed by a bunch of Crow noise. The owl sounds stopped, and I returned to sleep. Hugh

There's been some nice singing activity with a few migrants for my past 2 Sunday trail runs in which I bird along a roughly 8 mile route. These included Cassin's Vireos, Grasshopper & Lark Sparrows, M

At Jordan Pond in Garin/Dry Creek Regional Park this morning, I was astonished to see what at first I took to be a Canvasback. But a closer look showed that, other than the brick red head and white bo

Rosita became godmother to triplets today in a private ceremony held in Pine Canyon. I was just a spectator, but paid attention to the Swifts, Bluebirds and House Wrens along the way. An Acorn Woodpec

Yesterday 5/17/22 I observed a Wilson's Phalarope at MLK Regional Park (Arrowhead Marsh). Sighting was from San Leandro Creek Trail - West, north of the eastmost seasonal pond (now just mud). There is

For two days now, I have been seeing several Western Tanagers inthe eucalyptus trees in Heather Farm Park. These trees are between the boat ramp and the chin-up bars at the south end of the large pond

On a bird walk in El Cerrito Hillside Natural Area yesterday I saw a pair of swifts swirl around each other and fall through the air. Twice. I assume this was a courtship fall. Try as I might, I could

This morning close to the summit of Mt. Diablo I fulfilled a long time dream of mine by stumbling upon a fantastic show of diurnal migration!—entirely by accident. I’ve spent years now scouring topogr

Mountain biking Brionnes today, I saw a Lawrence’s goldfinch pair south of the highpoint of the Old Brionnes trail about 75 yards south on the crest trail. I saw them several times on the fence - they

Not being home much the last three weeks, it was nice to be back in my stomping grounds yesterday and today. The park was really quiet Friday, I have no idea.why. It was a little better today, but mos

Great diversity moving, flycatchers, vireos, warblers, tanagers and grosbeaks - and the accipiters that follow them. No big waves but a steady stream this morning. Moving warblers are females, males u

Hello, I was very surprised to find at least 20 Western Tanagers in the Ken Mercer park. They were in groups of 2 to 8 in different areas, mostly going from eucalyptus trees to pine trees. Here is my

I am continually amazed by how good observers birds are. The yard suet feeder went empty. Before filling it I looked around . No birds in sight or calling. I filled it, stepped back 10 feet and starte

Sorry for the late post. On 5/10 AM on my way to the summit, I ran into a flock of 63 Swainson's Thrushes and 9 West Tanagers in the parking lot. I could not find any other birds in the flock. See eBi

The weather has been tough for weekend birders like myself with every weekend day but one this spring a cold front has moved in and dispersed migrants that have moved, and no active migration on a big

For the last several days we have had several Western Tanagers (certainly 6, perhaps 12) of all ages at the north end of Homestead Rd. Today Walt D. and I watched the Eucalyptus for several minutes, d

A Golden-crowned Sparrow continues to hang around in my backyard. Every time I think it will have left for migration it shows up in the morning and again in the late afternoon/early evening. It was he

I’m in the sun below and east of Vollmer. Multiple tanagers, hemit and Townsends warblers moving through. I thinks its foggy west of Vollmer so they are moving through my neighborhood in the sun - for

This spring, Phil Georgakakos, Alex Henry, and I wanted to explore some of the more remote parts of Alameda county. So last weekend we spent Friday, Saturday, and Sunday (April 29-May 1) backpacking t

Hello everyone, Yesterday, I observed an interesting behavior happen between two Red-shouldered Hawks, in Pleasanton. One had just caught a rat and settled on a branch to eat it when a second hawk cam