BirdAnalyst
BBS Route · California · BCR 32

Ora Loma Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 82 species recorded across 9 survey years, still active.

82Species 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 →
9Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1972–2024Span
7Observers

Bird Species Found on California Ora Loma

Top 40 of 82 species by most recent count. Each links to its species trend.

Species recorded on the Ora Loma 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 SwallowHirundinidae6012024-33%1974
Red-winged BlackbirdIcteridae1272024+30%1974
Barn SwallowHirundinidae822024-26%1974
House SparrowPasseridae822024+7%1976
Northern PintailAnatidae791983-8%1974
House FinchFringillidae542024+44%1974
Western KingbirdTyrannidae512024+39%1974
Mourning DoveColumbidae442024+9%1974
Black TernLaridae431973n/an/a
Rock PigeonColumbidae402024+179%1974
Marsh WrenTroglodytidae302024+17%1976
Eurasian Collared-DoveColumbidae302024-30%2023
White-faced IbisThreskiornithidae302024n/an/a
Swainson's HawkAccipitridae29202424×1995
Black-crowned Night HeronArdeidae281983+164%1974
Brown-headed CowbirdIcteridae272024+196%1976
Song SparrowPasserellidae262024+129%1976
European StarlingSturnidae252024+9%1974
American CrowCorvidae242024+88%1974
Yellow-headed BlackbirdIcteridae211983-32%1974
Brewer's BlackbirdIcteridae182024-76%1974
Common YellowthroatParulidae17202417×1995
Western MeadowlarkIcteridae142024-48%1974
Northern MockingbirdMimidae132024+10%1974
Purple FinchFringillidae121972n/an/a
MallardAnatidae122024+123%1976
Red-tailed HawkAccipitridae112024+480%1976
Great EgretArdeidae102024+165%1976
Ring-necked PheasantPhasianidae92024-55%1974
Black-necked StiltRecurvirostridae81995-72%1974
Yellow-billed MagpieCorvidae81995-11%1976
Common RavenCorvidae82024+33%1976
Great Blue HeronArdeidae72024-24%1974
KilldeerCharadriidae72024-85%1974
American CootRallidae62023+72%1976
American RobinTurdidae62024+90%1974
Great-tailed GrackleIcteridae62024n/an/a
Tricolored BlackbirdIcteridae51974-83%1972
Loggerhead ShrikeLaniidae52024-59%1974
Ruddy DuckAnatidae51995+150%1973

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