BBS Route · California · BCR 33

Ft Irwin Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 25 species recorded across 7 survey years, no longer active.

25Species Recorded

7Years Surveyed

1975–1982Span

1Observers

Bird Species Found on California Ft Irwin

Top 25 of 25 species by most recent count. Each links to its species trend.

Species recorded on the Ft Irwin route.

Horned Lark	Alaudidae	20	1982	-36%	1978
House Sparrow	Passeridae	19	1982	+264%	1977
House Finch	Fringillidae	11	1978	+450%	1975
Black-throated Sparrow	Passerellidae	6	1982	-28%	1978
Brewer's Blackbird	Icteridae	5	1975	n/a	n/a
Chukar	Phasianidae	5	1979	n/a	n/a
Common Raven	Corvidae	4	1982	+36%	1978
Bell's Sparrow	Passerellidae	3	1981	-63%	1978
Red-tailed Hawk	Accipitridae	2	1981	+33%	1978
Lark Sparrow	Passerellidae	2	1975	n/a	n/a
Black Phoebe	Tyrannidae	2	1977	n/a	n/a
American Goldfinch	Fringillidae	2	1977	n/a	n/a
Northern Mockingbird	Mimidae	2	1977	n/a	n/a
European Starling	Sturnidae	1	1982	-43%	1977
LeConte's Thrasher	Mimidae	1	1980	-71%	1977
Mourning Dove	Columbidae	1	1981	-50%	1979
American Kestrel	Falconidae	1	1978	+0%	1977
Costa's Hummingbird	Trochilidae	1	1977	n/a	n/a
Rock Wren	Troglodytidae	1	1977	n/a	n/a
Verdin	Remizidae	1	1977	n/a	n/a
Burrowing Owl	Strigidae	1	1978	n/a	n/a
Western Meadowlark	Icteridae	1	1979	n/a	n/a
Turkey Vulture	Cathartidae	1	1981	n/a	n/a
Northern Rough-winged Swallow	Hirundinidae	1	1982	n/a	n/a
Bendire's Thrasher	Mimidae	1	1982	n/a	n/a

Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22. A route is a sample, not a census.