BirdAnalyst
BBS Route · Montana · BCR 10

Clancy Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 87 species recorded across 10 survey years, still active.

87Species 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 →
10Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
2015–2025Span
1Observers

Bird Species Found on Montana Clancy

Top 40 of 87 species by most recent count. Each links to its species trend.

Species recorded on the Clancy 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
Warbling VireoVireonidae552025+42%2017
Yellow WarblerParulidae302025+100%2017
American RobinTurdidae302025-20%2017
European StarlingSturnidae222024+77%2018
Chipping SparrowPasserellidae142025-22%2017
Dusky FlycatcherTyrannidae112025+250%2017
Western Wood-PeweeTyrannidae102025-36%2017
Common RavenCorvidae102025+13%2017
Willow FlycatcherTyrannidae92025+50%2017
Gray CatbirdMimidae82025-52%2017
Pine SiskinFringillidae82025+7%2019
Black-capped ChickadeeParidae72025-55%2017
Canada GooseAnatidae72018n/an/a
Tree SwallowHirundinidae62025-8%2017
Ruby-crowned KingletRegulidae62025-51%2017
BuffleheadAnatidae52025-56%2017
Red-winged BlackbirdIcteridae52025+10%2017
Swainson's ThrushTurdidae52025-50%2017
Rock PigeonColumbidae52021-29%2016
Brown-headed CowbirdIcteridae42024-36%2017
Cassin's FinchFringillidae42017+100%2015
MacGillivray's WarblerParulidae42025+75%2017
Cliff SwallowHirundinidae42025-14%2022
Clark's NutcrackerCorvidae32023-20%2016
Black-headed GrosbeakCardinalidae32024+100%2017
Common YellowthroatParulidae32024-20%2016
Lazuli BuntingCardinalidae32025+100%2021
Western BluebirdTurdidae32017n/an/a
Lincoln's SparrowPasserellidae32025-29%2022
Wilson's WarblerParulidae32023+200%2021
Great Blue HeronArdeidae22017+0%2015
Red-tailed HawkAccipitridae22024-40%2019
Least FlycatcherTyrannidae22022-50%2017
Green-tailed TowheePasserellidae22018+100%2015
Western TanagerCardinalidae22025-55%2017
Mountain BluebirdTurdidae22025-60%2017
Sandhill CraneGruidae22016n/an/a
Wilson's SnipeScolopacidae22021+100%2016
Western MeadowlarkIcteridae22024+17%2019
GadwallAnatidae22023+100%2017

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