• East view from Crissy Field overlook with old Coast Guard station on left and city on right

    Presidio of San Francisco

    California

Sanderling

(Calidris alba)
 
Sanderling
Sanderlings tussle for food on the beach at Crissy Field.
Will Elder, NPS
 

Natural History: The Sanderling forages at sand beach wash zones by following the waves and probing for small invertebrates. It nests in areas of the tundra. It is a winter resident from August through May. It is potentially territorial.

General Distribution: In the Presidio, this species can be found in tidal areas.

Frequency: This species is common all seasons except summer when it breeds in the arctic.

Identifying Characteristics: The Sanderling appears as a small, pale sandpiper with a flashing white wing-stripe. It displays a snowy white below, gray above, and is dark shouldered. It is often seen chasing waves.

Presidio Birds main page

Did You Know?

Detail from Spanish Coat of Arms

While stationed at the Presidio, the U.S. Army adopted the Coat of Arms of Royal Spain for heraldry purposes. The seal appeared on vehicles, signs, and badges throughout the post.