BirdAnalyst
BBS Route · Wyoming · BCR 10

Bairoil Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 64 species recorded across 29 survey years, still active.

64Species Recorded
29Years Surveyed
1988–2024Span
3Observers

Bird Species Found on Wyoming Bairoil

Top 40 of 64 species by most recent count. Each links to its species trend.

Species recorded on the Bairoil route.
History
Horned LarkAlaudidae1382024+52%1991
Vesper SparrowPasserellidae1042024+152%1991
Brewer's SparrowPasserellidae802024+103%1991
Sage ThrasherMimidae702024+32%1991
Western MeadowlarkIcteridae262024+500%1991
Mourning DoveColumbidae142024+371%1993
Greater Sage-GrousePhasianidae132024-6%1991
Cliff SwallowHirundinidae122011+200%1991
Sagebrush SparrowPasserellidae102024-76%1995
American CrowCorvidae72024+150%1994
Red-winged BlackbirdIcteridae62024+188%1992
American RobinTurdidae52024-27%1995
Brewer's BlackbirdIcteridae52023+150%1992
Common RavenCorvidae52023+117%1996
Violet-green SwallowHirundinidae42023+0%1993
Rock WrenTroglodytidae32024+33%1992
Common NighthawkCaprimulgidae32023+200%2008
KilldeerCharadriidae22024+57%1991
Mountain PloverCharadriidae21988n/an/a
Northern HarrierAccipitridae22022+0%1991
Lark BuntingPasserellidae22016-79%1991
Grasshopper SparrowPasserellidae22024+67%1991
Yellow WarblerParulidae22024+63%1994
Savannah SparrowPasserellidae22024+100%1994
Barn SwallowHirundinidae22024+33%1996
GadwallAnatidae22014+50%2006
Green-tailed TowheePasserellidae22024+200%1995
MallardAnatidae22024+67%1997
Bank SwallowHirundinidae22024+50%2010
American KestrelFalconidae22024+0%2007
Sandhill CraneGruidae22007n/an/a
Canada GooseAnatidae22024-50%2023
Ferruginous HawkAccipitridae12022-43%1991
Black-billed MagpieCorvidae12024-60%1992
Clark's NutcrackerCorvidae12024+200%1992
Bewick's WrenTroglodytidae11990n/an/a
Golden EagleAccipitridae12023+33%1995
Willow FlycatcherTyrannidae12023+0%1991
Brown-headed CowbirdIcteridae12024+167%1994
European StarlingSturnidae12000-50%1997

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