BirdAnalyst
BBS Route · Montana · BCR 10

Libby Dam Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 128 species recorded across 31 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 →
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 →
1979–2025Span
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
Swainson's ThrushTurdidae1072025+98%1982
American RobinTurdidae652025+1%1982
Least FlycatcherTyrannidae392015+30%1988
Cliff SwallowHirundinidae322025-8%1984
Chipping SparrowPasserellidae222025-19%1982
Red CrossbillFringillidae202025-26%1983
Golden-crowned KingletRegulidae192015+167%1983
Clark's NutcrackerCorvidae19199419×1989
Western TanagerCardinalidae172025+340%1982
Common RavenCorvidae162025-56%1982
Pine SiskinFringillidae162025+708%1982
Cedar WaxwingBombycillidae152025+41%1982
Hammond's FlycatcherTyrannidae132024+4%1982
Yellow WarblerParulidae122025+3%1982
Northern Rough-winged SwallowHirundinidae92024-13%1982
Barn SwallowHirundinidae72025-74%1982
Savannah SparrowPasserellidae71990+433%1987
Northern WaterthrushParulidae62025+300%1986
Common MerganserAnatidae52024+150%1983
Song SparrowPasserellidae52025-81%1982
Violet-green SwallowHirundinidae52025-17%1982
Common YellowthroatParulidae52025-40%1982
Wilson's WarblerParulidae52013+18%1983
Olive-sided FlycatcherTyrannidae42015+0%1983
American CrowCorvidae42024+118%1984
Evening GrosbeakFringillidae41995-18%1982
Red-eyed VireoVireonidae42025-15%1983
Bank SwallowHirundinidae42001-45%1986
Pacific WrenTroglodytidae42000+50%1990
Ruffed GrousePhasianidae32013+133%1984
Cassin's FinchFringillidae31994+0%1982
American RedstartParulidae32025+7%1982
Gray CatbirdMimidae32025+200%1982
Ruby-crowned KingletRegulidae32024+194%1982
Brewer's BlackbirdIcteridae31997+30%1983
Canada GooseAnatidae31999+0%1982
Nashville WarblerParulidae32024+333%1986
House SparrowPasseridae31983n/an/a
Spotted TowheePasserellidae32025+340%1989
American GoshawkAccipitridae21990+50%1984

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