A House Sparrows in the dune scrub near Crissy Marsh.
Will Elder, NPS
Natural History: The House Sparrow is an introduced species to the Presidio. It eats primarily seeds, but also eats fruits and scraps. This species roosts in cavities and dense foliage and nests in holes in buildings, cliffs, and trees. It breeds in colonies.
General Distribution: In the Presidio, this species can be found in all developed areas and breeds within the Presidio grounds.
Frequency: This species is common all year.
Identifying Characteristics: The House Sparrow is brown above, with a light underside, a black throat and gray crown with white cheeks. It is a loud, cheeping bird.