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BBS Route · California · BCR 9

Cedarville Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 132 species recorded across 26 survey years, still active.

132Species 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 →
26Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1974–2024Span
9Observers

Bird Species Found on California Cedarville

Top 40 of 132 species by most recent count. Each links to its species trend.

Species recorded on the Cedarville 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
Brewer's BlackbirdIcteridae3282024-33%1977
European StarlingSturnidae2192024+118%1977
Red-winged BlackbirdIcteridae1002024-40%1977
Double-crested CormorantPhalacrocoracidae602024n/an/a
Western MeadowlarkIcteridae492024+1%1977
California GullLaridae32197832×1975
Brown-headed CowbirdIcteridae302024-25%1991
Black-billed MagpieCorvidae242024+69%1977
California QuailOdontophoridae232024+161%1977
WilletScolopacidae222019-47%1977
Sandhill CraneGruidae182024+54%1978
Eurasian Collared-DoveColumbidae172024-20%2014
GadwallAnatidae142019+133%1994
House SparrowPasseridae142024-39%1977
Bank SwallowHirundinidae13202413×1994
American White PelicanPelecanidae13201713×2015
BushtitAegithalidae122017+7%2001
Turkey VultureCathartidae112024-23%1977
American RobinTurdidae112024-30%1977
Bullock's OrioleIcteridae102024+121%1977
Red-tailed HawkAccipitridae92024+246%1978
Long-billed CurlewScolopacidae82019-52%1978
Mourning DoveColumbidae82019-45%1977
Barn SwallowHirundinidae82024-61%1977
Common RavenCorvidae72024+400%1978
White-faced IbisThreskiornithidae72019+33%2002
Eared GrebePodicipedidae61974n/an/a
MallardAnatidae62019+53%1977
KilldeerCharadriidae62024-39%1977
Western KingbirdTyrannidae52024+89%1977
American CrowCorvidae52024-47%1977
Lark SparrowPasserellidae52024+57%1991
Mountain ChickadeeParidae51978n/an/a
Swainson's HawkAccipitridae52024+129%1998
American KestrelFalconidae42024+60%1977
Song SparrowPasserellidae42024+0%1998
Greater Sage-GrousePhasianidae41978n/an/a
Cliff SwallowHirundinidae42019-53%1990
Warbling VireoVireonidae42024+150%1991
Rock PigeonColumbidae32024+347%1977

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