Date: 9/2/25 5:20 pm From: Zac Denning via groups.io <zdenning1...> Subject: Re: [EBB-Sightings] Black-chinned Hummingbird (another) at Creekside
Update: this bird has been confirmed as a Black-chinned Hummingbird.
ZacDenning
Albany
On Tue, Sep 2, 2025 at 12:52 PM Zac Denning via groups.io <zdenning1=
<gmail.com...> wrote:
> Last night at 5:30 PM, at Creekside Park,
> I found a juvenile Archilochus Sp. Hummingbird, presumably Black-chinned
> Hummingbird.
> I was standing at the east end of the dry flood retention concrete basin
> on the north side of Cerrito Creek (15 ft west of the fallen tree - foot
> bridge). The bird was at about (37.8983039, -122.3045264) and best viewed
> from the Contra Costa (north) side of the creek.
>
> Based on the different pattern of throat spotting, this is clearly a
> different individual than either of the (1-2) Black-chinneds reported on
> 8/24 or 8/26.
>
> To me, the shape of the primaries looked better for Black-chinned, though
> one other possibility was mentioned on Telegram. It was sunning itself in
> sunlit Willows about 10 to 15 feet off the ground, on trees on both sides
> of the creek. Long, slender, hummingbird, with white throat and clean white
> underparts, gray crown, with green back.
>
> EBird report:
> https://ebird.org/checklist/S271017770 >
> Zac Denning
> Albany, CA
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