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BBS Route · Idaho · BCR 10

Challis Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 113 species recorded across 43 survey years, still active.

113Species 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 →
43Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1975–2024Span
5Observers

Bird Species Found on Idaho Challis

Top 40 of 113 species by most recent count. Each links to its species trend.

Species recorded on the Challis 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
Yellow WarblerParulidae552024+105%1977
Violet-green SwallowHirundinidae392024+524%1979
Song SparrowPasserellidae362024+92%1977
American RobinTurdidae352024+8%1977
Warbling VireoVireonidae342024+548%1977
Pine SiskinFringillidae262024+64%1977
VeeryTurdidae242024+32%1977
Brewer's SparrowPasserellidae192024+187%1977
Vesper SparrowPasserellidae132024+136%1978
Rock WrenTroglodytidae112024+233%1977
Western TanagerCardinalidae112024+625%1980
Red-winged BlackbirdIcteridae102024+70%1977
MacGillivray's WarblerParulidae102024+75%1977
Ruby-crowned KingletRegulidae92024+500%1979
Lazuli BuntingCardinalidae82024+18%1977
Fox SparrowPasserellidae82024+86%1979
Northern House WrenTroglodytidae82024+300%1984
Western Wood-PeweeTyrannidae82024+267%1992
Hammond's FlycatcherTyrannidae82024+375%2001
Black-billed MagpieCorvidae72024+44%1977
Dusky FlycatcherTyrannidae72024+720%1982
Chipping SparrowPasserellidae62024+113%1978
Tree SwallowHirundinidae62024+167%1984
Townsend's SolitaireTurdidae62011+200%1983
Common RavenCorvidae62024+138%1981
Spotted SandpiperScolopacidae52024-11%1978
Willow FlycatcherTyrannidae52024-35%1977
Black-headed GrosbeakCardinalidae52024+300%1983
Northern Rough-winged SwallowHirundinidae52019+60%1979
Gray CatbirdMimidae52024+200%1981
Wilson's PhalaropeScolopacidae51989n/an/a
Brewer's BlackbirdIcteridae42024-32%1977
Common YellowthroatParulidae42012+200%1981
Canada JayCorvidae42021+200%1980
Rock PigeonColumbidae42012+300%1983
Canada GooseAnatidae41991-50%1988
Green-tailed TowheePasserellidae42019+300%1994
Wilson's SnipeScolopacidae32024+0%1977
American CrowCorvidae32024+50%1977
Western MeadowlarkIcteridae32021+0%1977

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