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BBS Route · California · BCR 32

Cal Hot Spgs Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 106 species recorded across 17 survey years, still active.

106Species 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 →
17Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1993–2019Span
3Observers

Bird Species Found on California Cal Hot Spgs

Top 40 of 106 species by most recent count. Each links to its species trend.

Species recorded on the Cal Hot Spgs 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
Northern House WrenTroglodytidae672019-56%1995
Acorn WoodpeckerPicidae602019-56%1995
House FinchFringillidae462019-40%1995
Mourning DoveColumbidae402019-52%1995
Ash-throated FlycatcherTyrannidae322019-59%1995
Black-headed GrosbeakCardinalidae312019-78%1995
European StarlingSturnidae282019-79%1995
California QuailOdontophoridae272019-27%1995
Western BluebirdTurdidae252019-33%1995
Common RavenCorvidae242019-33%1995
California Scrub-JayCorvidae192019-68%1995
Lesser GoldfinchFringillidae192019-65%1995
Oak TitmouseParidae182019-83%1995
Violet-green SwallowHirundinidae162019-59%1995
California TowheePasserellidae152019-87%1995
Western KingbirdTyrannidae132019-67%1995
White-breasted NuthatchSittidae122019-73%1995
Turkey VultureCathartidae92019+280%1995
Western Wood-PeweeTyrannidae92019-82%1995
American CrowCorvidae92017+55%1996
Red-tailed HawkAccipitridae82019-45%1995
Mountain QuailOdontophoridae82019+22%1997
Steller's JayCorvidae72019-58%1995
Lawrence's GoldfinchFringillidae72019+36%1995
Cliff SwallowHirundinidae71997+250%1993
Wild TurkeyPhasianidae72019+275%2012
Black SwiftApodidae72016+40%2007
House SparrowPasseridae62019-89%1995
Red-winged BlackbirdIcteridae62019+288%1996
Eurasian Collared-DoveColumbidae62019+267%2012
Loggerhead ShrikeLaniidae51994+67%1993
Hairy WoodpeckerPicidae42019-36%1997
Black PhoebeTyrannidae42019-24%1995
Lazuli BuntingCardinalidae42019+47%1995
American RobinTurdidae42019-25%1995
Horned LarkAlaudidae41996n/an/a
American KestrelFalconidae32019-17%1995
Brown-headed CowbirdIcteridae32019-61%1995
Lark SparrowPasserellidae32017-76%1995
Western TanagerCardinalidae32019-63%1995

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