BirdAnalyst
BBS Route · California · BCR 15

Chilcoot Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 97 species recorded across 5 survey years, still active.

97Species 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 →
5Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1998–2024Span
3Observers

Bird Species Found on California Chilcoot

Top 40 of 97 species by most recent count. Each links to its species trend.

Species recorded on the Chilcoot 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
Western Wood-PeweeTyrannidae582024+113%2008
Cliff SwallowHirundinidae512024-3%2008
Mountain ChickadeeParidae452024+48%2008
House SparrowPasseridae402024+313%2008
Brown-headed CowbirdIcteridae222024+43%2008
American RobinTurdidae222024-16%2008
Orange-crowned WarblerParulidae222009n/an/a
Western TanagerCardinalidae212024+111%2008
American CrowCorvidae192024+73%1998
Spotted TowheePasserellidae192024-6%2008
Green-tailed TowheePasserellidae182024+27%2008
Song SparrowPasserellidae142024+100%2008
Hairy WoodpeckerPicidae132024+600%2008
Chipping SparrowPasserellidae132024-76%1998
White-breasted NuthatchSittidae132024+200%2008
Steller's JayCorvidae122024-29%2008
Canada GooseAnatidae122024n/an/a
White-headed WoodpeckerPicidae112024+120%1998
Cassin's FinchFringillidae112024+38%2008
Red CrossbillFringillidae112024+120%1998
Mountain BluebirdTurdidae112024+71%2008
Ring-billed GullLaridae102008+900%1998
Mourning DoveColumbidae102024+122%2008
Gray FlycatcherTyrannidae102024+100%1998
Western KingbirdTyrannidae92024+233%2008
Bullock's OrioleIcteridae92024+100%2008
Yellow WarblerParulidae92024-36%2008
Rock WrenTroglodytidae82024+57%2009
Brown CreeperCerthiidae72024+40%1998
Red-breasted SapsuckerPicidae72024+600%2008
Mountain QuailOdontophoridae62023-60%1998
Common NighthawkCaprimulgidae62024+500%1998
California QuailOdontophoridae62024+0%2009
Lesser GoldfinchFringillidae62024+100%2009
Pygmy NuthatchSittidae62024+0%2023
BuffleheadAnatidae51998n/an/a
KilldeerCharadriidae52024+67%1998
Pine SiskinFringillidae52024+25%1998
Black-headed GrosbeakCardinalidae52023-29%1998
Violet-green SwallowHirundinidae52024+7%2008

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