Took a furlough day today and birded Mitchell Canyon on the north
side of Mt. Diablo. It was an 8 warbler species day; 4 Wilson's, 10
Orange-crowned, 5 Black-throated Gray, 2 Yellow-rumped (Audubon's), 9
Nashville, 4 Townsend's, 1 MacGillivray's, 1 Hermit. Most of the
warblers were spotted feeding in the coast live oaks (Q. agrifolia)--
it seemed that every other grove of oaks had warblers in them. Also
saw a pair of male Lazuli Buntings, and Warbling and Hutton's
Vireos. Flycatchers included several Ash-throated and Pacific-slope
and 1 Hammond's.
Flowers were great too, the highlight being the Broomrape
parasitizing the chamise, (Orobanche bulbosa) along the Red Road Trail.
Lawrence Hall of Science