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BBS Route · Wyoming · BCR 17

Clarkelen Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 62 species recorded across 9 survey years, no longer active.

62Species 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 →
9Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1968–1978Span
4Observers

Bird Species Found on Wyoming Clarkelen

Top 40 of 62 species by most recent count. Each links to its species trend.

Species recorded on the Clarkelen 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
Lark BuntingPasserellidae3441978-12%1971
Western MeadowlarkIcteridae1681978+11%1971
Horned LarkAlaudidae1441978+289%1971
Mourning DoveColumbidae531978+117%1971
Red-winged BlackbirdIcteridae321978+177%1971
Brewer's SparrowPasserellidae281978+182%1972
Vesper SparrowPasserellidae211978-15%1971
House SparrowPasseridae171978+750%1975
MallardAnatidae161978+73%1972
Canada GooseAnatidae161977+46%1976
KilldeerCharadriidae141978+162%1971
Barn SwallowHirundinidae141978+191%1971
Cliff SwallowHirundinidae141978+0%1972
Northern Rough-winged SwallowHirundinidae111977+42%1975
American CrowCorvidae101975+400%1974
Savannah SparrowPasserellidae81977-37%1975
GadwallAnatidae71975+9%1972
Wild TurkeyPhasianidae71978+25%1976
American KestrelFalconidae61977n/an/a
Brown-headed CowbirdIcteridae51978+67%1968
Swainson's HawkAccipitridae41978+300%1971
Brewer's BlackbirdIcteridae41977-36%1974
Sage ThrasherMimidae41978+100%1975
Eastern KingbirdTyrannidae41978+67%1975
Wilson's PhalaropeScolopacidae41978+300%1976
Blue-winged TealAnatidae41978+33%1977
Yellow-headed BlackbirdIcteridae41977n/an/a
Greater Sage-GrousePhasianidae31977-50%1971
Northern PintailAnatidae31978+50%1974
Ring-necked PheasantPhasianidae31974n/an/a
Ruddy DuckAnatidae31978n/an/a
Chestnut-collared LongspurCalcariidae31978n/an/a
Northern HarrierAccipitridae21978+60%1971
Red-tailed HawkAccipitridae21978+0%1971
Say's PhoebeTyrannidae21978-74%1974
Green-winged TealAnatidae21977-73%1972
Ferruginous HawkAccipitridae21976+50%1972
European StarlingSturnidae21977-71%1971
Common GrackleIcteridae21976+100%1971
Spotted SandpiperScolopacidae21975+100%1972

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