I led my Palo Alto Adult School birding class to Hayward Shoreline yesterday.
The parking lot had a nesting pair of WHITE-TAILED KITES and perhaps
ten Selasphorus HUMMINGBIRDS. Of course, it was hard to get good looks
at them, but because we witnessed courtship dive-and-buzz, we assumed
they were primarily ALLEN'S HUMMINGBIRDS.
Most of the other expected species were present including a BURROWING OWL,
an OSPREY and a large group of "Aleutian" CACKLING GEESE, and two SNOW GEESE.
The shoreline was crowded with Shorebirds during the hight tide, and
we spotted a good group of RED KNOT, including some in pre-alternate molt.
There were also four BLACK OYSTERCATCHER, and two RUDDY TURNSTONES.
Gulls were not abundant, but we did have a nice variety. Frank's Dump was
essentially devoid of birds because the rain had filled up the basin, making
it much harder for birds to find shallow water.