BirdAnalyst
BBS Route · Montana · BCR 10

Inside Road Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 103 species recorded across 35 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 →
35Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1990–2025Span
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 ThrushTurdidae212025+71%1992
Vaux's SwiftApodidae20201220×2005
Ruby-crowned KingletRegulidae162025+94%1992
Western TanagerCardinalidae132025+36%1992
Warbling VireoVireonidae122025+44%1992
Northern WaterthrushParulidae112025-33%1992
Chipping SparrowPasserellidae102025+5%1992
Townsend's WarblerParulidae102025+77%1992
Pine SiskinFringillidae92025+19%1992
American RobinTurdidae92025-42%1992
Dusky FlycatcherTyrannidae72025+30%1992
Red-breasted NuthatchSittidae62025-12%1992
Cassin's VireoVireonidae52025+83%1993
MacGillivray's WarblerParulidae52025-41%1992
Black-capped ChickadeeParidae52025+367%1997
Varied ThrushTurdidae52025+22%1992
Red CrossbillFringillidae52023+250%1997
Red-naped SapsuckerPicidae42025+71%1992
Hammond's FlycatcherTyrannidae42025+100%1993
Tree SwallowHirundinidae42022-84%1992
Orange-crowned WarblerParulidae42025+30%1992
Common RavenCorvidae32025+17%1992
Lazuli BuntingCardinalidae32017+40%1992
Mountain ChickadeeParidae32022+220%1993
Golden-crowned KingletRegulidae32025+129%1992
American RedstartParulidae32025+100%1994
Ruffed GrousePhasianidae32025+100%2004
Black-backed WoodpeckerPicidae21999+0%1990
Pileated WoodpeckerPicidae22025+133%1997
Olive-sided FlycatcherTyrannidae22024-67%1992
Canada JayCorvidae22021-17%1993
Yellow WarblerParulidae22025+0%1994
Mountain BluebirdTurdidae22009-74%1992
Brown-headed CowbirdIcteridae22022-43%1993
Wilson's WarblerParulidae22025+0%1994
Song SparrowPasserellidae22025+0%1995
Cedar WaxwingBombycillidae22023+11%1996
Evening GrosbeakFringillidae22015-48%1996
Northern Rough-winged SwallowHirundinidae22024+100%1994

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