Date: 6/9/26 9:27 am From: Zac Denning via groups.io <zdenning1...> Subject: Re: [EBB-Sightings] Contra Costa County Swinhoe’s White-eye breeding activity
Correction: the email above should have said "Santa Clara Ave" rather than
"San Carlos"! Thanks to Arvel for pointing out my mistake.
Zac Denning
Alabany
On Tue, Jun 9, 2026 at 9:09 AM Zac Denning <zdenning1...> wrote:
> For a while now, I’ve been monitoring Swinhoe’s White-eyes that have been
> singing (and apparently on territory) along San Carlos Ave in El Cerrito,
> as well as on the Alameda County (Albany) side of the park. Since there is
> no previous breeding record in Contra Costa County, I was curious to see
> If they are attempting breeding.
>
> On Friday, I was able to photograph a bird with a brood patch, which is a
> “Confirmed” type eBird breeding code (vs breeding codes marked as
> Possible). While this strongly suggests breeding activity, I have yet to
> encounter a nest or fledglings.
>
> EBird list with photos of the bird with brood patch, plus audio and
> locations:
> https://ebird.org/atlascalifornia/checklist/S354806113 >
> Previous checklist with photos/audio, plus more location info - including
> a favored feeding spot on a bottle brush plant that the birds sometimes
> visit (easier viewing than the typical song perches high in trees):
> https://ebird.org/atlascalifornia/checklist/S344008612 >
> Zac Denning
> Albany
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