BirdAnalyst
BBS Route · Montana · BCR 10

Libby Dam Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 128 species recorded across 30 survey years, still active.

128Species 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 →
30Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1979–2024Span
11Observers

Bird Species Found on Montana Libby Dam

Top 40 of 128 species by most recent count. Each links to its species trend.

Species recorded on the Libby Dam 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
Pine SiskinFringillidae782024+625%1982
Swainson's ThrushTurdidae762024+26%1982
American RobinTurdidae742024-21%1982
Least FlycatcherTyrannidae392015+30%1988
Chipping SparrowPasserellidae242024-37%1982
Yellow WarblerParulidae222024+16%1982
Western TanagerCardinalidae202024+210%1982
Golden-crowned KingletRegulidae192015+167%1983
Clark's NutcrackerCorvidae19199419×1989
Cliff SwallowHirundinidae182024-52%1984
Song SparrowPasserellidae162024-76%1982
Willow FlycatcherTyrannidae142024-29%1982
Cedar WaxwingBombycillidae142024+46%1982
Hammond's FlycatcherTyrannidae132024+4%1982
Warbling VireoVireonidae132024+675%1982
Black-headed GrosbeakCardinalidae132015+200%1989
Red-eyed VireoVireonidae122024-15%1983
American RedstartParulidae102024+50%1982
Red-breasted NuthatchSittidae102024+115%1982
Northern Rough-winged SwallowHirundinidae92024-13%1982
MacGillivray's WarblerParulidae92024-38%1982
Black-capped ChickadeeParidae92024+38%1982
Common YellowthroatParulidae82024-40%1982
Tree SwallowHirundinidae72024-40%1982
Savannah SparrowPasserellidae71990+433%1987
Lazuli BuntingCardinalidae62024-10%1989
Common MerganserAnatidae52024+150%1983
Cassin's VireoVireonidae52024+64%1982
Wilson's WarblerParulidae52013+18%1983
Olive-sided FlycatcherTyrannidae42015+0%1983
Common RavenCorvidae42024-85%1982
American CrowCorvidae42024+118%1984
Evening GrosbeakFringillidae41995-18%1982
Gray CatbirdMimidae42024+275%1982
Bank SwallowHirundinidae42001-45%1986
Pacific WrenTroglodytidae42000+50%1990
Ruffed GrousePhasianidae32013+133%1984
Mourning DoveColumbidae32024-18%1982
Western Wood-PeweeTyrannidae32024-77%1982
Cassin's FinchFringillidae31994+0%1982

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