Date: 3/10/26 11:06 pm
From: Lee Friedman via groups.io <lfried6...>
Subject: [EBB-Sightings] An Unusual Sighting of Breeding Bird behaviors
Like many of us, I am contributing to the California Atlas Project of breeding birds. I find that I am noticing and appreciating bird behaviors—sightings—that I might have overlooked earlier. Yesterday I observed at Lake Anza a pair of Dark-eyed Juncos displaying two breeding phases simultaneously: copulation and gathering nest materials. The male happened to be banded as well (although numbers not legible). These can be seen in the linked photograph:

Dark-Eyed Juncos Breeding and Nest-Building https://www.flickr.com/photos/99583878@N06/55141494019/in/dateposted-public/

Afterwards, the female continued transporting her beak full of nesting material with no apparent dropage. Taken in block Richmond SE at Lake Anza in Tilden Regional Park, CA on March 9, 2026. (Note to Atlasers: Lake Anza is divided into two different blocks by a north-south line that goes down the middle of the Lake.)

The full Atlas report from this outing is here:

https://ebird.org/atlascalifornia/checklist/S307786200

Good birding all,

Lee Friedman



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