BBS Route · Montana · BCR 10

East Glacier Park Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 109 species recorded across 9 survey years, still active.

Bird Species Found on Montana East Glacier Park

Top 40 of 109 species by most recent count. Each links to its species trend.

Species recorded on the East Glacier Park 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
Cedar WaxwingBombycillidae502024+230%2017
Red-winged BlackbirdIcteridae332024+47%2017
American RobinTurdidae302024-32%2017
Warbling VireoVireonidae272024+15%2017
European StarlingSturnidae232024+0%2017
White-crowned SparrowPasserellidae192024-30%2017
Yellow WarblerParulidae182024-17%2017
Northern WaterthrushParulidae182024+60%2017
Brewer's BlackbirdIcteridae172024-5%2017
Ruby-crowned KingletRegulidae162024-8%2017
VeeryTurdidae162024+44%2017
Pine SiskinFringillidae152024+120%2017
Vesper SparrowPasserellidae132024-18%2017
Black-billed MagpieCorvidae122024-70%2017
Wilson's SnipeScolopacidae112024+27%2017
Common RavenCorvidae112024+20%2017
Western TanagerCardinalidae112024+200%2017
American CrowCorvidae102024-38%2017
Brown-headed CowbirdIcteridae102024+73%2017
Chipping SparrowPasserellidae102024+14%2017
Black-headed GrosbeakCardinalidae102024+88%2017
Western MeadowlarkIcteridae92024+0%2017
Common YellowthroatParulidae92024+143%2017
Red-tailed HawkAccipitridae72024-15%2017
American GoldfinchFringillidae72024+13%2017
Lazuli BuntingCardinalidae72024+25%2017
American White PelicanPelecanidae72019n/an/a
MallardAnatidae62024+64%2017
Northern House WrenTroglodytidae62024-57%2017
Mountain BluebirdTurdidae62024+11%2017
Willow FlycatcherTyrannidae62024+0%2018
MacGillivray's WarblerParulidae52024+14%2017
Red-naped SapsuckerPicidae42024-15%2017
Eastern KingbirdTyrannidae42023+75%2017
Dusky FlycatcherTyrannidae42024+10%2018
Tree SwallowHirundinidae42024+55%2017
Gray CatbirdMimidae42024-30%2017
Swainson's ThrushTurdidae42024-33%2017
Lesser ScaupAnatidae42019-64%2017
Great Blue HeronArdeidae42024-50%2021

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