[EBB Sightings] Mitchell Canyon - Hammond's Flycatchers and Nashville Warbler

Hi E.B. Birders,

Today at Mitchell Canyon, Mount Diablo State Park,  I
saw seven Hammond's Flycatchers, and another two I was
unable get on well enough to positively identify
(Hammond's/Dusky -type).  This did not include five
additional sightings on the return trip. None were
"singing", but at least four were giving a "pip"-type
call. 

Also:
Nashville Warbler - 2
Black-throated Gray Warbler - 2 
Cassin's Vireo -2 
Black-headed Grosbeak - 4
Blue-gray Gnatcatcher -1

I talked to Peter White who said he saw a Western
Tanager near the parking lot.

All the Best Birding,
Denise Wight
Moraga, CA