[EBB Sightings] Heather Farms notes

I just completed my short jog around Heather Farms pond in Walnut Creek and 
made a few noteworthy observations (in addition to the blackbirds, Mallards, 
etc.):

-Pied-billed Grebe (in winter plumage)
-Bufflehead (male)
-Black-crowned Night Heron (juvenile)
-Black Phoebe
-White-crowned sparrows (4 individuals)

The usual mobs of Canada Geese were making their usual racket; and finally, 
I noted a large flock of crows mobbing an unfortunate Red-tailed Hawk at 
high altitude. I counted at least 43 crows furiously harassing this poor 
raptor!

Bob Hislop
Concord