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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 36 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 →
36Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1976–2024Span
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
Ring-billed GullLaridae128202411×1982
Western MeadowlarkIcteridae1072024+2%1978
Vesper SparrowPasserellidae862024-39%1978
Savannah SparrowPasserellidae602024+94%1978
European StarlingSturnidae572024+710%1978
Brewer's BlackbirdIcteridae452024-12%1978
Red-winged BlackbirdIcteridae392024-5%1978
Brown-headed CowbirdIcteridae362024-12%1978
Thick-billed LongspurCalcariidae322024+592%1979
Horned LarkAlaudidae232024-71%1978
Wilson's SnipeScolopacidae182024+26%1978
Yellow-headed BlackbirdIcteridae172024+91%1978
Eastern KingbirdTyrannidae152024+144%1978
Northern House WrenTroglodytidae142024+42%1978
American RobinTurdidae132024-44%1978
Western Wood-PeweeTyrannidae122024+82%1978
Cliff SwallowHirundinidae122024-71%1979
Black-billed MagpieCorvidae112024-8%1978
Northern Rough-winged SwallowHirundinidae112024-19%1979
Yellow WarblerParulidae112024-32%1978
Canada GooseAnatidae102024-7%1984
Tree SwallowHirundinidae92024+533%1981
Double-crested CormorantPhalacrocoracidae82022+225%1985
Bank SwallowHirundinidae82012-48%1992
Blue-winged TealAnatidae72021-20%1978
House SparrowPasseridae72024-24%1978
BobolinkIcteridae62024-37%1979
CanvasbackAnatidae62014+100%1984
American GoldfinchFringillidae52024+21%1979
American White PelicanPelecanidae42024-42%1988
Long-billed CurlewScolopacidae42024-55%1978
American CrowCorvidae42024+80%1982
Lesser ScaupAnatidae42024+33%1979
Barrow's GoldeneyeAnatidae42014n/an/a
Chestnut-collared LongspurCalcariidae32010-70%1978
Clay-colored SparrowPasserellidae32024-27%1978
Common YellowthroatParulidae32024-44%1978
Common GrackleIcteridae32010-39%1979
Pine SiskinFringillidae32013-67%1984
GadwallAnatidae32022+0%1981

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