BirdAnalyst
BBS Route · Wyoming · BCR 10

Clark Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 120 species recorded across 22 survey years, still active.

120Species 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 →
22Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1990–2024Span
4Observers

Bird Species Found on Wyoming Clark

Top 40 of 120 species by most recent count. Each links to its species trend.

Species recorded on the Clark 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
Western MeadowlarkIcteridae692024-36%1992
Vesper SparrowPasserellidae362024+36%1992
Canada GooseAnatidae342010+31%2001
European StarlingSturnidae322024-28%1992
Rock PigeonColumbidae222010+633%2004
MallardAnatidae192010+4%1992
Red-winged BlackbirdIcteridae152024-12%1992
Spotted TowheePasserellidae132024+767%1992
Horned LarkAlaudidae122024-68%1992
Lesser ScaupAnatidae122001+200%2000
House SparrowPasseridae122010+300%2001
Eurasian Collared-DoveColumbidae122010n/an/a
Cliff SwallowHirundinidae112024-70%2001
Wilson's PhalaropeScolopacidae102024n/an/a
Common NighthawkCaprimulgidae92023+88%1992
American GoldfinchFringillidae92024-47%1992
Common YellowthroatParulidae82024+13%1992
Ring-necked PheasantPhasianidae72024-41%1992
Violet-green SwallowHirundinidae72023-58%1992
Western TanagerCardinalidae72023+400%2001
Wilson's SnipeScolopacidae62024+100%1992
Yellow-breasted ChatIcteriidae62024+380%1992
Common GrackleIcteridae62011-14%2002
Green-winged TealAnatidae52001n/an/a
Mourning DoveColumbidae42024-62%1992
Brewer's BlackbirdIcteridae42024-87%1992
Tree SwallowHirundinidae42024+25%1992
Yellow WarblerParulidae42024+125%1992
Green-tailed TowheePasserellidae42024+200%2004
Loggerhead ShrikeLaniidae42024+63%2011
Common MerganserAnatidae31992-70%1990
Warbling VireoVireonidae32023-38%2001
American WigeonAnatidae31992n/an/a
Field SparrowPasserellidae32007n/an/a
CanvasbackAnatidae32019n/an/a
Thick-billed LongspurCalcariidae32024-36%2021
KilldeerCharadriidae22024+46%1992
Prairie FalconFalconidae22002+100%1990
White-throated SwiftApodidae21990n/an/a
Eastern KingbirdTyrannidae22024-68%1992

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