Herring Gulls (Larus argentatus) in a tete a tete at Stow Lake. Looked like courting behavior.
The male Hooded Merganser (Lophodytes cucullatus) who's been hanging out at Stow Lake, his white hood beginning to appear.
Great Blue Heron (Ardea Herodias) displaying at her nest while three nestlings look on; Stow Lake. See additional views of the heron, nest, chicks.
Black-crowned Night Heron (Nycticorax nycticorax) listening intently on the shore of Crissy Marsh.
Eared Grebes (Podiceps nigricollis) in breeding plumage at Crissy Marsh in the Presidio.
Great Blue Heron (Ardea herodias) listening to gophers moving underground, then it caught one! I watched it catch two, in fact.
White-crowned Sparrow (Zonotrichia leucophrys), Stow Lake, Golden Gate Park.
American Wigeon couple (Anas Americana), Stow Lake, Golden Gate Park. Male on the right, female on the left.
Song Sparrow (Melospiza melodia) seen through a screen of branches at North Lake in Golden Gate Park, San Francisco
A disgruntled-looking Hooded Merganser (Lophodytes cucullatus), molting out of his juvenile plumage, Stow Lake, Golden Gate Park.
A Great Blue Heron (Ardea Herodias) lifts off from the shore of Stow Lake, Golden Gate Park.
This aggressive goose was chasing and biting at others in the flock, then he took to the water after another goose, tongue out.
The wings of the Great Blue are so elegant as it glides across Stow Lake.
Something made me look up in time to see this Great Blue Heron flying a branch to his nest at Stow Lake.
A nondescript brown shorebird on the ground, the Willet in flight shows wonderful black and white stripes on its wings.
Yellow-rumped Warbler, Audubon's by the yellow throat, seen in the Botanical Garden's succulent patch.
This young Greater White-fronted Goose was with a flock of Canada Geese, grazing near the Waterfowl Pond in the Botanical Garden.
A male Bufflehead surrounded by a bevy of female Ruddy Ducks at Stow Lake, Golden Gate Park.
An immature male Hooded Merganser, ID'd by black and white wing bars and yellow eyes, still with his mam's headgear.
There was a large flock of Northern Shovelers gyrating in Stow Lake, and nearby this lone Shoveler couple doing their own private dance.
Sleek Northern Pintail drake cruising Stow Lake in Golden Gate Park.
Yellow-rumped Warbler hiding behind bare branches at Stow Lake.
Ross's Goose hanging out with a flock of Canada Geese at the Botanical Garden.
Hooded Mergansers displaying for the ladies, Spreckles Lake, Golden Gate Park.
A Great Egret (Ardea alba) takes flight at Lloyd Lake in Golden Gate Park.
A Brewer's Blackbird (Euphagus cyanocephalus) checking out what's above at Stow Lake, Golden Gate Park.
Double-crested Cormorant (Phalacrocorax auritus) standing tall, surveying his kingdon at Stow Lake, Golden Gate Park.
California Chestnut-backed Chickadee (Poecile rufescens barlowi group)
North Lake, Golden Gate Park
Seen scurrying across the path in the Botanical Garden, pausing ever so slightly in the flower bed before scurrying across the next path, Golden Gate Park.
This was 2011, didn't see one again until 2013, and none since then.
California Quail (Callipepla californica) seen below the stairway to Stow Lake, Golden Gate Park.
This was in 2013, haven't seen one since.