Date: 4/27/24 8:30 pm From: Bruce Mast via groups.io <cathrasher4...> Subject: [EBB-Sightings] Mount Diablo miscellaneous
Hello birders, I spent today scouting for a Mount Diablo Hiking Big Day I'm doing tomorrow, as part of Golden Gate Bird Alliance's spring Birdathon fundraiser. I birded the morning in Castle Rock Recreational Rec Area and the afternoon along Green Ranch Road. The highlight of my Castle Rock walk was a Warbling Vireo singing its lungs out while sitting in its nest. (See nest photo at https://ebird.org/checklist/S170573484). Migrants were scarce.
Hiking back from Green Ranch along the Oak Knoll trail, I ran into a small mixed flock feasting on a termite hatch. The flock included 3 cute little Chipping Sparrows. Overhead a cluster of 5 Vaux's Swifts flew in, accompanied by a couple Violet-Green Swallows. Later at Rock City, I saw a couple more Vaux's migrating with a small Violet-Green Swallow Flock. https://ebird.org/checklist/S170641478
Bird on,
Bruce Mast Oakland
PS, if you would like to support Golden Gate Bird Alliance and spur me on tomorrow, please consider donating to my fundraising page at https://charity.pledgeit.org/f/EPzPrjTh2i. Thank you!
