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BBS Route · California · BCR 32

Mt Pinos Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 101 species recorded across 31 survey years, no longer active.

101Species 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 →
31Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1969–2004Span
5Observers

Bird Species Found on California Mt Pinos

Top 40 of 101 species by most recent count. Each links to its species trend.

Species recorded on the Mt Pinos 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
Steller's JayCorvidae342004+11%1971
Mourning DoveColumbidae262004+133%1971
Western Wood-PeweeTyrannidae242004-52%1971
Spotted TowheePasserellidae242004-15%1971
Black-headed GrosbeakCardinalidae182004-30%1971
Mountain ChickadeeParidae172004-28%1971
Pygmy NuthatchSittidae162004+3%1971
House FinchFringillidae132004-54%1971
Olive-sided FlycatcherTyrannidae122004-46%1971
Brewer's BlackbirdIcteridae112004+133%1971
California Scrub-JayCorvidae102004-23%1971
Violet-green SwallowHirundinidae102004-74%1971
White-breasted NuthatchSittidae92004-17%1971
BushtitAegithalidae91997-27%1973
Acorn WoodpeckerPicidae92004+625%1978
California QuailOdontophoridae82004+46%1971
Lawrence's GoldfinchFringillidae82001+82%1973
Fox SparrowPasserellidae82004-21%1971
Rock PigeonColumbidae81977n/an/a
Mountain QuailOdontophoridae72004-44%1971
Black-throated SparrowPasserellidae71997+150%1992
Cassin's FinchFringillidae62004-61%1971
Western BluebirdTurdidae62004-52%1971
Common RavenCorvidae62004+817%1980
European StarlingSturnidae52004+44%1972
Purple FinchFringillidae52004-54%1972
Costa's HummingbirdTrochilidae41983+300%1969
Cassin's KingbirdTyrannidae41969n/an/a
Lesser GoldfinchFringillidae42004-75%1971
Band-tailed PigeonColumbidae42003-28%1972
Tree SwallowHirundinidae41971n/an/a
House SparrowPasseridae41997+25%1986
MallardAnatidae42004+0%2001
California CondorCathartidae31969n/an/a
Chipping SparrowPasserellidae32004-71%1971
Black-chinned SparrowPasserellidae32004-86%1971
California TowheePasserellidae32004-28%1971
Northern House WrenTroglodytidae32004-77%1971
WrentitSylviidae32004-36%1974
American RobinTurdidae32004-57%1971

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