BBS Route · California · BCR 33

Cima Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 53 species recorded across 31 survey years, still active.

Bird Species Found on California Cima

Top 40 of 53 species by most recent count. Each links to its species trend.

Species recorded on the Cima 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
Black-throated SparrowPasserellidae582021+178%1972
Ash-throated FlycatcherTyrannidae202021+184%1972
House FinchFringillidae172021+59%1972
Cactus WrenTroglodytidae152021-33%1972
Ladder-backed WoodpeckerPicidae112021+200%1975
Mourning DoveColumbidae82021+10%1973
Brown-headed CowbirdIcteridae82021+0%1981
Rock PigeonColumbidae81998+5%1981
Greater RoadrunnerCuculidae62021+167%1978
Scott's OrioleIcteridae62021-38%1972
Snowy EgretArdeidae61977n/an/a
Red-tailed HawkAccipitridae52021+233%1972
Western KingbirdTyrannidae52013-61%1972
Barn SwallowHirundinidae51972n/an/a
Common RavenCorvidae42021+300%1978
Cassin's KingbirdTyrannidae41998-22%1977
Bullock's OrioleIcteridae42021+0%1983
Bewick's WrenTroglodytidae42013+200%1989
Turkey VultureCathartidae32021-29%1976
Lark SparrowPasserellidae31971n/an/a
Western MeadowlarkIcteridae31998-64%1985
Gambel's QuailOdontophoridae22021+333%1974
American KestrelFalconidae22021-50%1974
Say's PhoebeTyrannidae22021+0%1974
Pinyon JayCorvidae21991-77%1972
House SparrowPasseridae22021-50%1975
Black-headed GrosbeakCardinalidae21974n/an/a
Golden EagleAccipitridae21983+0%1976
Common PoorwillCaprimulgidae21995+25%1992
White-winged DoveColumbidae21989n/an/a
Great Horned OwlStrigidae12021+67%1973
Gilded FlickerPicidae11987-50%1971
Horned LarkAlaudidae12013+50%1972
Northern Rough-winged SwallowHirundinidae11970n/an/a
Loggerhead ShrikeLaniidae12021-46%1974
Bendire's ThrasherMimidae12021-62%1972
Western Wood-PeweeTyrannidae11975-67%1971
Northern MockingbirdMimidae12021-65%1978
European StarlingSturnidae11998-33%1975
Brewer's SparrowPasserellidae11993-20%1975

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