BirdAnalyst
BBS Route · Montana · BCR 10

Willow Creek Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 84 species recorded across 10 survey years, no longer active.

84Species 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 →
10Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1972–1981Span
2Observers

Bird Species Found on Montana Willow Creek

Top 40 of 84 species by most recent count. Each links to its species trend.

Species recorded on the Willow Creek 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 MeadowlarkIcteridae591981+7%1974
European StarlingSturnidae531981+429%1974
Horned LarkAlaudidae491981+34%1974
Vesper SparrowPasserellidae441981-6%1974
Red-winged BlackbirdIcteridae401981+59%1974
American RobinTurdidae271981+42%1974
Mourning DoveColumbidae261981+177%1974
House SparrowPasseridae251981+2%1974
Black-billed MagpieCorvidae241981-48%1974
Cliff SwallowHirundinidae241981+16%1974
Wilson's SnipeScolopacidae121981+80%1974
Pinyon JayCorvidae111980+300%1976
KilldeerCharadriidae101981-5%1974
White-throated SwiftApodidae101980+450%1973
Eastern KingbirdTyrannidae71981+350%1975
Rock WrenTroglodytidae71981-12%1974
Brown-headed CowbirdIcteridae61981+133%1974
Brewer's BlackbirdIcteridae61981-39%1974
Barn SwallowHirundinidae61981-18%1974
Ring-necked PheasantPhasianidae51981+52%1974
Rock PigeonColumbidae51981+411%1974
Savannah SparrowPasserellidae51981-33%1974
Northern House WrenTroglodytidae51981+0%1974
BobolinkIcteridae41981-42%1974
Yellow WarblerParulidae41981+43%1974
Common YellowthroatParulidae31981-29%1974
Western Wood-PeweeTyrannidae31981-9%1975
Long-billed CurlewScolopacidae21981-53%1974
Golden EagleAccipitridae21980+50%1973
American KestrelFalconidae21981-9%1974
American GoldfinchFringillidae21981-57%1974
Song SparrowPasserellidae21981-58%1974
Spotted TowheePasserellidae21981-75%1974
Black-headed GrosbeakCardinalidae21972n/an/a
Northern Rough-winged SwallowHirundinidae21976+180%1973
Gray CatbirdMimidae21981+0%1974
Great Blue HeronArdeidae21981+150%1975
Gray PartridgePhasianidae21976n/an/a
Short-eared OwlStrigidae21981+100%1976
Belted KingfisherAlcedinidae21981+100%1976

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