BirdAnalyst
BBS Route · Montana · BCR 10

Logan Pass Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 92 species recorded across 31 survey years, still active.

92Species 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 →
31Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1980–2024Span
2Observers

Bird Species Found on Montana Logan Pass

Top 40 of 92 species by most recent count. Each links to its species trend.

Species recorded on the Logan Pass 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
Swainson's ThrushTurdidae352024+17%1989
Warbling VireoVireonidae322024+42%1989
Pine SiskinFringillidae282024+47%1989
Golden-crowned KingletRegulidae212024+81%1989
Fox SparrowPasserellidae202024-39%1989
MacGillivray's WarblerParulidae182024-19%1989
American RobinTurdidae182024+0%1989
Varied ThrushTurdidae172024-34%1989
White-crowned SparrowPasserellidae152024+229%1989
Tree SwallowHirundinidae142024+55%2018
Townsend's WarblerParulidae112024-16%1989
Ruby-crowned KingletRegulidae112024+4%1989
Chipping SparrowPasserellidae102024+0%1989
Red-breasted NuthatchSittidae92024+163%1990
Hammond's FlycatcherTyrannidae82024+90%1989
Dusky FlycatcherTyrannidae62024+7%1989
Northern WaterthrushParulidae62024+257%1989
Wilson's WarblerParulidae62024-22%1990
Black-headed GrosbeakCardinalidae52024+300%1992
Western TanagerCardinalidae52024+142%1989
Hermit ThrushTurdidae52024+200%1990
Canada GooseAnatidae52005+67%1993
Spotted SandpiperScolopacidae42024-33%1989
Common RavenCorvidae42024+67%1991
Yellow WarblerParulidae42024-11%1989
Mountain BluebirdTurdidae42024+40%1998
Lazuli BuntingCardinalidae42024+43%1990
Cedar WaxwingBombycillidae42022+25%1994
Vaux's SwiftApodidae32023-50%1989
Olive-sided FlycatcherTyrannidae32024+60%1990
Western Wood-PeweeTyrannidae32021+100%2017
Cassin's FinchFringillidae31992+200%1980
Violet-green SwallowHirundinidae32024-31%1989
American RedstartParulidae32024-33%1989
Chestnut-backed ChickadeeParidae32023+50%1993
Evening GrosbeakFringillidae32010-69%1998
Northern Rough-winged SwallowHirundinidae32023+67%2014
Brown-headed CowbirdIcteridae32024+125%2021
Tennessee WarblerParulidae32016+200%2013
Common LoonGaviidae22013+0%2003

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