BirdAnalyst
BBS Route · Wyoming · BCR 10

Pathfinder Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 82 species recorded across 38 survey years, still active.

82Species RecordedSpecies recordedDistinct species detected on standard-protocol BBS runs here across all years on record — a measure of survey breadth, not a complete checklist.Full methodology →
38Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1982–2025Span
5Observers

Bird Species Found on Wyoming Pathfinder

Top 40 of 82 species by most recent count. Each links to its species trend.

Species recorded on the Pathfinder route.
Recent countThe raw number of individuals recorded on this route in its most recent survey year. A single-route tally, not a trend.Full methodology →TrendPercent change in the route-weighted abundance index between a smoothed baseline window and the most recent one. It tracks direction, not absolute population.Full methodology →Baseline yearThe first year of the smoothed window the trend is measured from. An earlier baseline means a longer record stands behind the number.Full methodology →History
Horned LarkAlaudidae612025-39%1984
Cliff SwallowHirundinidae372025-9%1984
Brewer's SparrowPasserellidae342025+86%1984
Bank SwallowHirundinidae252024+69%1993
Western MeadowlarkIcteridae222025-52%1984
Brewer's BlackbirdIcteridae192025-51%1984
Song SparrowPasserellidae182018+14%1992
Common RavenCorvidae142025+343%2018
California GullLaridae122025+129%1987
Wilson's PhalaropeScolopacidae122025-62%1984
Vesper SparrowPasserellidae122025-36%1984
Sage ThrasherMimidae122025-41%1984
Green-winged TealAnatidae102025+67%1984
KilldeerCharadriidae92025-58%1984
Common GrackleIcteridae92022+0%1992
Red-winged BlackbirdIcteridae82025-10%1984
European StarlingSturnidae72022-41%1995
Black-billed MagpieCorvidae62025+225%1989
Clay-colored SparrowPasserellidae52023-32%2000
Wilson's SnipeScolopacidae42024+10%1984
Mourning DoveColumbidae42025-57%1984
Lark BuntingPasserellidae42025-46%1984
Northern HarrierAccipitridae42025+50%1988
Greater Sage-GrousePhasianidae42024-71%1989
American CrowCorvidae42013-29%2010
American AvocetRecurvirostridae42025+25%2000
Blue-winged TealAnatidae42025-40%1994
American White PelicanPelecanidae42017-20%2000
Loggerhead ShrikeLaniidae32025+29%1988
Turkey VultureCathartidae32022+75%1996
Ferruginous HawkAccipitridae32022-29%1991
Western KingbirdTyrannidae32024+200%1989
Rock WrenTroglodytidae32025-25%1996
Canada GooseAnatidae32014-75%1996
Ruddy DuckAnatidae32022+200%2016
Eared GrebePodicipedidae22025-48%1989
Common MerganserAnatidae22007-67%1982
Northern PintailAnatidae22025+15%1984
Savannah SparrowPasserellidae22024-46%1993
MallardAnatidae22025-32%1989

Source: USGS North American Breeding Bird Survey, retrieved 2026-08-14. A route is a sample, not a census.