BirdAnalyst
BBS Route · Idaho · BCR 10

Avery Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 82 species recorded across 41 survey years, still active.

82Species 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 →
41Years 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
4Observers

Bird Species Found on Idaho Avery

Top 40 of 82 species by most recent count. Each links to its species trend.

Species recorded on the Avery 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 ThrushTurdidae712025+88%1981
Townsend's WarblerParulidae402025+435%1981
Pine SiskinFringillidae352025+360%1981
Pacific WrenTroglodytidae302025+176%1981
Western TanagerCardinalidae222025+3%1981
Cliff SwallowHirundinidae171994+21%1991
Golden-crowned KingletRegulidae162025+53%1992
Varied ThrushTurdidae152025-17%1981
Chipping SparrowPasserellidae142025+140%1981
Canada GooseAnatidae141990n/an/a
Hammond's FlycatcherTyrannidae132025+29%1981
Hermit ThrushTurdidae132025+88%2015
Fox SparrowPasserellidae122025+39%1981
Warbling VireoVireonidae112025-29%1981
Red-breasted NuthatchSittidae102025+167%1981
American RobinTurdidae102025-6%1981
White-crowned SparrowPasserellidae72003+22%1982
Song SparrowPasserellidae72025+125%1981
Dusky FlycatcherTyrannidae62016+233%1982
Ruby-crowned KingletRegulidae62025+23%1981
Black SwiftApodidae62025n/an/a
MacGillivray's WarblerParulidae52025-38%1981
Wilson's WarblerParulidae52025+10%1981
MallardAnatidae52018n/an/a
Steller's JayCorvidae42025-20%1981
Canada JayCorvidae42023+14%1983
Yellow WarblerParulidae42025+0%1981
Spotted TowheePasserellidae42025+125%1988
Barn SwallowHirundinidae41989n/an/a
Willow FlycatcherTyrannidae32025+40%1981
Lazuli BuntingCardinalidae32025+100%1981
Violet-green SwallowHirundinidae32022-44%1983
Cassin's VireoVireonidae32025+133%1995
Black-capped ChickadeeParidae32025-11%1992
Tree SwallowHirundinidae32025-25%2006
Hairy WoodpeckerPicidae22023-20%1981
Olive-sided FlycatcherTyrannidae22025-64%1981
Cassin's FinchFringillidae22025-22%1982
Red CrossbillFringillidae22025-50%1981
American DipperCinclidae22025-17%1983

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