Date: 6/9/26 9:09 am From: Zac Denning via groups.io <zdenning1...> Subject: [EBB-Sightings] Contra Costa County Swinhoe’s White-eye breeding activity
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.
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
