BBS Route · Montana · BCR 10

Clancy Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 80 species recorded across 8 survey years, still active.

Bird Species Found on Montana Clancy

Top 40 of 80 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 VireoVireonidae512023+70%2017
American RobinTurdidae332023-26%2017
Chipping SparrowPasserellidae232023-48%2017
Willow FlycatcherTyrannidae152023+83%2017
Lazuli BuntingCardinalidae152023+280%2019
Ruby-crowned KingletRegulidae142023-49%2017
Yellow WarblerParulidae122023+39%2017
Western Wood-PeweeTyrannidae112023-22%2017
Swainson's ThrushTurdidae112023-6%2017
Dusky FlycatcherTyrannidae92023+160%2017
Tree SwallowHirundinidae92023-15%2017
Pine SiskinFringillidae92023+29%2019
Canada GooseAnatidae72018n/an/a
Common RavenCorvidae52023-38%2017
Black-capped ChickadeeParidae52023-3%2017
Rock PigeonColumbidae52021-29%2016
Evening GrosbeakFringillidae52022+100%2017
Lincoln's SparrowPasserellidae52023+150%2019
Cassin's FinchFringillidae42017+100%2015
Song SparrowPasserellidae42023-45%2017
Cedar WaxwingBombycillidae42023+300%2017
Clark's NutcrackerCorvidae32023-20%2016
Western TanagerCardinalidae32023-23%2017
Western MeadowlarkIcteridae32023+33%2019
Western BluebirdTurdidae32017n/an/a
Eastern KingbirdTyrannidae32018n/an/a
Hermit ThrushTurdidae32023+50%2019
Wilson's WarblerParulidae32023+200%2021
Great Blue HeronArdeidae22017+0%2015
Least FlycatcherTyrannidae22022-50%2017
Red-winged BlackbirdIcteridae22023+20%2017
Brewer's BlackbirdIcteridae22023-42%2017
Green-tailed TowheePasserellidae22018+100%2015
Gray CatbirdMimidae22023-52%2017
Townsend's SolitaireTurdidae22023-25%2017
Sandhill CraneGruidae22016n/an/a
Wilson's SnipeScolopacidae22021+100%2016
Olive-sided FlycatcherTyrannidae22022+150%2017
American CrowCorvidae22023+100%2016
Red-breasted NuthatchSittidae22023-36%2019

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