BirdAnalyst
BBS Route · Idaho · BCR 9

Squirrel Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 120 species recorded across 45 survey years, still active.

120Species 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 →
45Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1971–2025Span
7Observers

Bird Species Found on Idaho Squirrel

Top 40 of 120 species by most recent count. Each links to its species trend.

Species recorded on the Squirrel 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
American RobinTurdidae312025-42%1973
Mourning DoveColumbidae232025-60%1973
Ruby-crowned KingletRegulidae232025+259%1973
Western MeadowlarkIcteridae222025-47%1973
Cliff SwallowHirundinidae182025+113%1977
American CrowCorvidae172025+46%1973
Black-billed MagpieCorvidae162025+0%1973
Northern House WrenTroglodytidae152025+62%1973
Ring-billed GullLaridae122014n/an/a
Warbling VireoVireonidae112025-41%1973
Western TanagerCardinalidae102025-16%1973
Dusky FlycatcherTyrannidae82025-43%1973
Red-winged BlackbirdIcteridae82025-50%1973
Brewer's BlackbirdIcteridae82025-85%1973
Barn SwallowHirundinidae82025+150%1977
Black-headed GrosbeakCardinalidae82025+180%1974
Townsend's WarblerParulidae71994n/an/a
Wilson's PhalaropeScolopacidae71999n/an/a
Turkey VultureCathartidae72021+267%2006
European StarlingSturnidae62025-63%1973
Yellow WarblerParulidae62025-49%1973
American AvocetRecurvirostridae61998n/an/a
American KestrelFalconidae52025-33%1973
Horned LarkAlaudidae52024-83%1973
Ruffed GrousePhasianidae52025+200%1992
Swainson's HawkAccipitridae52024+33%1979
Vesper SparrowPasserellidae42025-65%1973
Chipping SparrowPasserellidae42025-74%1973
Mountain BluebirdTurdidae42025+0%1974
Townsend's SolitaireTurdidae42009+20%1988
Calliope HummingbirdTrochilidae42004+150%1990
Clark's NutcrackerCorvidae42013+100%1993
Rock PigeonColumbidae32014-46%1974
Western Wood-PeweeTyrannidae32025-14%1973
Red CrossbillFringillidae32007-50%1978
American GoldfinchFringillidae32025+125%1973
Song SparrowPasserellidae32025-81%1973
Green-tailed TowheePasserellidae32025-7%1973
Northern Rough-winged SwallowHirundinidae31991-61%1974
Orange-crowned WarblerParulidae32025-22%1973

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