BirdAnalyst
BBS Route · California · BCR 32

Bakersfield Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 69 species recorded across 23 survey years, still active.

69Species 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 →
23Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1968–2023Span
7Observers

Bird Species Found on California Bakersfield

Top 40 of 69 species by most recent count. Each links to its species trend.

Species recorded on the Bakersfield 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
Cliff SwallowHirundinidae1132023+611%1989
Tricolored BlackbirdIcteridae602019-83%1970
Mourning DoveColumbidae532023+56%1970
House SparrowPasseridae492023-70%1970
House FinchFringillidae432023+291%1970
Common RavenCorvidae39202311×1970
Brewer's BlackbirdIcteridae362023+15%1970
Western KingbirdTyrannidae332023+9%1970
Eurasian Collared-DoveColumbidae262023+73%2017
Red-winged BlackbirdIcteridae222023-89%1970
American CrowCorvidae212019+200%2000
Northern Rough-winged SwallowHirundinidae172023+62%2003
Brown-headed CowbirdIcteridae142023+73%1970
Northern MockingbirdMimidae142023+63%1970
MallardAnatidae132018+0%1972
Bullock's OrioleIcteridae92023-11%1970
KilldeerCharadriidae82023+38%1970
Black PhoebeTyrannidae72023+50%2017
American RobinTurdidae62023+150%1970
European StarlingSturnidae52023-67%1970
Swainson's ThrushTurdidae51970n/an/a
Black-crowned Night HeronArdeidae52023+400%2003
Burrowing OwlStrigidae42004-70%1970
LeConte's ThrasherMimidae41973+86%1970
Cinnamon TealAnatidae41972+100%1970
Barn SwallowHirundinidae42018+86%1979
Northern PintailAnatidae31968n/an/a
Red-tailed HawkAccipitridae32023+14%1970
Western MeadowlarkIcteridae32023-96%1970
Blue GrosbeakCardinalidae32003-25%1971
Anna's HummingbirdTrochilidae32015-17%1999
Black-necked StiltRecurvirostridae22018-81%1972
American KestrelFalconidae22023-20%1998
Lark SparrowPasserellidae22023-85%1971
Song SparrowPasserellidae22016-69%1971
Common GallinuleRallidae21970n/an/a
Lesser GoldfinchFringillidae22023+20%1999
Great EgretArdeidae22023+20%2001
Great Blue HeronArdeidae22015-33%1999
Western Cattle-EgretArdeidae22004+100%2000

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