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BBS Route · Montana · BCR 10

Augusta Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 141 species recorded across 37 survey years, still active.

141Species 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 →
37Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1976–2025Span
5Observers

Bird Species Found on Montana Augusta

Top 40 of 141 species by most recent count. Each links to its species trend.

Species recorded on the Augusta 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 MeadowlarkIcteridae1682025+21%1978
Savannah SparrowPasserellidae752025+122%1978
Vesper SparrowPasserellidae642025-37%1978
Red-winged BlackbirdIcteridae532025-1%1978
European StarlingSturnidae512025+719%1978
Brewer's BlackbirdIcteridae422025-1%1978
Thick-billed LongspurCalcariidae312025+413%1979
Rock PigeonColumbidae30202530×2013
Horned LarkAlaudidae272025-66%1978
Northern Rough-winged SwallowHirundinidae262025+7%1979
Yellow-headed BlackbirdIcteridae172025+91%1978
Eastern KingbirdTyrannidae122025+125%1978
American RobinTurdidae122025-52%1978
Cliff SwallowHirundinidae122024-71%1979
Brown-headed CowbirdIcteridae112025-9%1978
Northern House WrenTroglodytidae112025+74%1978
Tree SwallowHirundinidae112025+633%1981
Wilson's SnipeScolopacidae102025-13%1978
Common YellowthroatParulidae102025-36%1978
Canada GooseAnatidae102024-7%1984
American GoldfinchFringillidae92025+36%1979
Double-crested CormorantPhalacrocoracidae82022+225%1985
Long-billed CurlewScolopacidae82025-55%1978
Ring-billed GullLaridae82025+941%1982
Bank SwallowHirundinidae82012-48%1992
CanvasbackAnatidae62014+100%1984
Mourning DoveColumbidae52025-77%1978
Western Wood-PeweeTyrannidae52025+41%1978
House SparrowPasseridae52025-53%1978
Pine SiskinFringillidae52025-54%1984
American White PelicanPelecanidae42024-42%1988
Blue-winged TealAnatidae42025-7%1978
BobolinkIcteridae42025-56%1979
Lesser ScaupAnatidae42024+33%1979
Barrow's GoldeneyeAnatidae42014n/an/a
KilldeerCharadriidae32025-85%1978
Black-billed MagpieCorvidae32025-29%1978
Chestnut-collared LongspurCalcariidae32010-70%1978
Common GrackleIcteridae32010-39%1979
Wilson's PhalaropeScolopacidae32021-41%1982

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