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BBS Route · Wyoming · BCR 10

Clark Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 121 species recorded across 23 survey years, still active.

121Species 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 →
23Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1990–2025Span
4Observers

Bird Species Found on Wyoming Clark

Top 40 of 121 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 MeadowlarkIcteridae682025-36%1992
Vesper SparrowPasserellidae472025+51%1992
Canada GooseAnatidae342010+31%2001
European StarlingSturnidae322024-28%1992
Rock PigeonColumbidae222010+633%2004
MallardAnatidae192010+4%1992
Horned LarkAlaudidae192025-63%1992
Brewer's SparrowPasserellidae132025+256%1992
Lesser ScaupAnatidae122001+200%2000
House SparrowPasseridae122010+300%2001
Eurasian Collared-DoveColumbidae122010n/an/a
Ring-necked PheasantPhasianidae112025-49%1992
Lark BuntingPasserellidae112025-83%1992
Cliff SwallowHirundinidae112024-70%2001
American CootRallidae102025-20%2000
American RobinTurdidae102025-58%1992
Wilson's PhalaropeScolopacidae102024n/an/a
Brewer's BlackbirdIcteridae92025-87%1992
Black-billed MagpieCorvidae72025-87%1992
Red-winged BlackbirdIcteridae72025-21%1992
Common YellowthroatParulidae72025+25%1992
Rock WrenTroglodytidae72025-35%1992
Western TanagerCardinalidae72023+400%2001
Wilson's SnipeScolopacidae62024+100%1992
Mourning DoveColumbidae62025-48%1992
Sage ThrasherMimidae62025+67%2000
Common GrackleIcteridae62011-14%2002
American GoldfinchFringillidae52025-47%1992
Green-winged TealAnatidae52001n/an/a
Thick-billed LongspurCalcariidae52025-27%2021
Tree SwallowHirundinidae42024+25%1992
Common MerganserAnatidae31992-70%1990
Eastern KingbirdTyrannidae32025-76%1992
Spotted TowheePasserellidae32025+633%1992
Barn SwallowHirundinidae32025-88%1992
Violet-green SwallowHirundinidae32025-58%1992
Say's PhoebeTyrannidae32025+0%2001
Western Wood-PeweeTyrannidae32025+80%2006
Warbling VireoVireonidae32023-38%2001
American WigeonAnatidae31992n/an/a

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