Cassin's Vireo - Creekside Park 3-23-19
A Cassin's Vireo was present on the Alameda county side of El Cerrito Creek foraging in the willows with an assortment of warblers, tits, chickadees and goldfinches. This was only the second sighting of Cassin's I've had at that park. FOS Wilson's warbler was present.
You can view pictures here: https://ebird.org/view/checklist/S54153529