Mild case of Leucism?

My niece sent me a photo she took of what is apparently a Common Raven but with a bright white patch in the center of it's upper breast beneath the throat. I don't think I can attach a photo here, but

The WF Ibis was a walk-up at 6:10 am in the small pond previously described at Candlestick SRA. Peter Pyle mentioned two cypresses - good landmark! Dave Weber, Milpitas By phone

Candlestick Park. Directions to pond - From north entrance turn-around, walk east than north along paved paths for 5-8 min. Pond is between two M cypresses and the bay. Hiding a bit in cattails @ 2:30

[Nest location removed by moderator] Photo here: http://www.birdwideweb.com/photos/05-10-19-Strybing-Hummingbird-F.jpg

Hi all Middle of the day, didn't know where I was going, but it's still there. The White-faced Ibis was very actively foraging in the small algae filled seasonal pond in the north end of Candlestick

Pictures on ebird list https://ebird.org/view/checklist/S56143434 Spring has sprung. Bill

There is a MACGILLIVRAY'S Warbler singing on Mount Davidson. Happy spring birding everyone, Dominik Mosur San Francisco

Posting for Jim Lomax. Refer to yesterday's messages for specific directions. Happy spring, Dominik Mosur

The Ibis continued on the small freshwater pond at the northeast corner of Candlestick State Rec. Area until about 18:30. It appeared wary spending a lot of time looking up and only occasionally

I'm in northwestern Ohio watching warbler migration on southwest shores of Lake Erie's marshes. Hooded Warblers spend summers around here. I feel so bad for the poor Hooded Warbler being blown so

I spent several early hours at the Baths this morning, mostly watching an amazing feeding group of over a thousand Brandt's Cormorants mixed with lesser numbers of murres, gulls, and pelicans, all

Following up on a eBird report from earlier today by Graeme Colmer I came down to candlestick point to look for a reported Ibis. I haven’t even made it to the bay, a beautiful White-faced Ibis is

Hi, Same spot as yesterday. Heard Drake’s “Hotline Bling” that Aaron Maizlisch pointed us to last year for the Stow Black-throated Green Warbler. I’m not confident enough in what I saw. But

Y’all, Holy cowbird! Or, as the famous birder Ice Cube once said, “Today was a good day.” The Hooded Warbler stuck around at least till 2:30pm when it stopped singing for the last time before I

Here is a link to ebird list with Hooded Warbler photos https://ebird.org/view/checklist/S56048074

All, Ran into Kevin Liberg at McLaren Park and after some wandering we heard some warblers. One song was loud and unfamiliar and after much searching we got eyes on a Hooded Warbler as it popped out

Hi all Some interesting natural history taking place in our midst as spring progresses. On an exploration of the southeast corner of the Presidio late this morning I was fortunate to encounter some

My daughter discovered what we assume to be an Anna's Hummingbird nest with parent on branch within catwalks/stairways on east side of the main high school building. See photo. Apparently it is almost

To add on to Brian’s report, I also had a good number of migrants yesterday morning and this morning before and during work. “Trolling the Dawn” By bicycle I noted the following: Lazuli