BirdAnalyst
BBS Route · Montana · BCR 10

Logan Pass Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 93 species recorded across 32 survey years, still active.

93Species 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 →
32Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1980–2025Span
2Observers

Bird Species Found on Montana Logan Pass

Top 40 of 93 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
Golden-crowned KingletRegulidae212024+81%1989
Swainson's ThrushTurdidae202025-3%1989
Pine SiskinFringillidae192025+16%1989
MacGillivray's WarblerParulidae192025-10%1989
Warbling VireoVireonidae182025+49%1989
American RobinTurdidae182025-4%1989
Tree SwallowHirundinidae152025+105%2018
White-crowned SparrowPasserellidae142025+207%1989
Fox SparrowPasserellidae142025-39%1989
Chipping SparrowPasserellidae102025+3%1989
Lazuli BuntingCardinalidae92025+100%1990
Hammond's FlycatcherTyrannidae82024+90%1989
Dusky FlycatcherTyrannidae72025+43%1989
Western TanagerCardinalidae72025+47%1989
Ruby-crowned KingletRegulidae72025+25%1989
Townsend's WarblerParulidae62025-26%1989
Yellow WarblerParulidae52025-6%1989
Canada GooseAnatidae52005+67%1993
Spotted SandpiperScolopacidae42024-33%1989
Olive-sided FlycatcherTyrannidae42025+100%1990
Mountain BluebirdTurdidae42025+80%1998
Vaux's SwiftApodidae32023-50%1989
Western Wood-PeweeTyrannidae32021+100%2017
Willow FlycatcherTyrannidae32025+0%1989
Common RavenCorvidae32025+67%1991
Cassin's FinchFringillidae31992+200%1980
Wilson's WarblerParulidae32025-11%1990
American RedstartParulidae32024-33%1989
Red-breasted NuthatchSittidae32025+150%1990
Varied ThrushTurdidae32025-48%1989
Chestnut-backed ChickadeeParidae32023+50%1993
Evening GrosbeakFringillidae32010-69%1998
Northern Rough-winged SwallowHirundinidae32023+67%2014
Tennessee WarblerParulidae32016+200%2013
Common LoonGaviidae22013+0%2003
Hairy WoodpeckerPicidae22024+75%2003
Steller's JayCorvidae22024-25%1989
Pine GrosbeakFringillidae22019+14%1995
Gray-crowned Rosy-FinchFringillidae22024-13%2002
Black-headed GrosbeakCardinalidae22025+300%1992

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