BBS Route · Wyoming · BCR 10

Black Rock Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 27 species recorded across 6 survey years, no longer active.

27Species Recorded

6Years Surveyed

1988–2001Span

3Observers

Bird Species Found on Wyoming Black Rock

Top 27 of 27 species by most recent count. Each links to its species trend.

Species recorded on the Black Rock route.
						History
Horned Lark	Alaudidae	167	2001	+14%	1993
Brewer's Sparrow	Passerellidae	32	2001	+94%	1990
Sage Thrasher	Mimidae	24	2001	+11%	1993
Vesper Sparrow	Passerellidae	15	2001	15×	1988
Sagebrush Sparrow	Passerellidae	9	2001	+350%	1990
Mourning Dove	Columbidae	7	2001	-30%	1994
Rock Wren	Troglodytidae	5	1994	n/a	n/a
Song Sparrow	Passerellidae	5	2001	n/a	n/a
Killdeer	Charadriidae	3	1995	+50%	1988
Common Nighthawk	Caprimulgidae	3	2001	+50%	1988
Burrowing Owl	Strigidae	3	2001	n/a	n/a
Lark Bunting	Passerellidae	3	2001	n/a	n/a
Greater Sage-Grouse	Phasianidae	2	2001	+43%	1990
American Kestrel	Falconidae	2	1994	+0%	1993
House Finch	Fringillidae	2	1993	n/a	n/a
Mountain Bluebird	Turdidae	2	1995	+100%	1993
Mallard	Anatidae	2	1995	-33%	1994
Common Raven	Corvidae	2	2001	n/a	n/a
Northern Harrier	Accipitridae	1	1988	n/a	n/a
Ferruginous Hawk	Accipitridae	1	1995	-33%	1990
Green-tailed Towhee	Passerellidae	1	2001	-75%	1988
Golden Eagle	Accipitridae	1	1995	-50%	1990
Lark Sparrow	Passerellidae	1	2001	-83%	1990
Red-tailed Hawk	Accipitridae	1	1994	n/a	n/a
Prairie Falcon	Falconidae	1	1995	n/a	n/a
Red-winged Blackbird	Icteridae	1	2001	-67%	1995
Swainson's Hawk	Accipitridae	1	2001	n/a	n/a

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