BirdAnalyst
BBS Route · Montana · BCR 10

Inside Road Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 103 species recorded across 34 survey years, still active.

103Species 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 →
34Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1990–2024Span
2Observers

Bird Species Found on Montana Inside Road

Top 40 of 103 species by most recent count. Each links to its species trend.

Species recorded on the Inside Road 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
Cliff SwallowHirundinidae602021+547%2008
Swainson's ThrushTurdidae462024+83%1992
Golden-crowned KingletRegulidae202024+164%1992
Vaux's SwiftApodidae20201220×2005
American RobinTurdidae162024-36%1992
Townsend's WarblerParulidae92024+94%1992
Ruby-crowned KingletRegulidae92023+78%1992
Warbling VireoVireonidae82024+56%1992
Chipping SparrowPasserellidae72024-33%1992
MacGillivray's WarblerParulidae72024-44%1992
Western TanagerCardinalidae62024+50%1992
Orange-crowned WarblerParulidae62024+60%1992
Red-breasted NuthatchSittidae62024+12%1992
Black-capped ChickadeeParidae52024+467%1997
Red CrossbillFringillidae52023+250%1997
Hammond's FlycatcherTyrannidae42024+50%1993
Dusky FlycatcherTyrannidae42024+0%1992
Pine SiskinFringillidae42024+0%1992
Fox SparrowPasserellidae42024+43%1993
Tree SwallowHirundinidae42022-84%1992
Northern WaterthrushParulidae42024-57%1992
Red-naped SapsuckerPicidae32024+43%1992
Common RavenCorvidae32023+67%1992
Lazuli BuntingCardinalidae32017+40%1992
Common YellowthroatParulidae32024+25%1992
Mountain ChickadeeParidae32022+220%1993
Common LoonGaviidae32024+133%1996
Black-backed WoodpeckerPicidae21999+0%1990
Olive-sided FlycatcherTyrannidae22024-67%1992
Canada JayCorvidae22021-17%1993
Red-winged BlackbirdIcteridae22024-13%1992
Cassin's VireoVireonidae22024+50%1993
Mountain BluebirdTurdidae22009-74%1992
Brown-headed CowbirdIcteridae22022-43%1993
Cedar WaxwingBombycillidae22023+11%1996
Red-eyed VireoVireonidae22024+33%2018
Evening GrosbeakFringillidae22015-48%1996
Northern Rough-winged SwallowHirundinidae22024+100%1994
Calliope HummingbirdTrochilidae22019+100%1998
KilldeerCharadriidae22001n/an/a

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