BirdAnalyst
BBS Route · California · BCR 32

Ora Loma Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 84 species recorded across 10 survey years, still active.

84Species 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 →
10Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1972–2025Span
7Observers

Bird Species Found on California Ora Loma

Top 40 of 84 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 SwallowHirundinidae6472025-18%1974
Red-winged BlackbirdIcteridae1432025-10%1974
Barn SwallowHirundinidae812025+18%1974
Northern PintailAnatidae791983-8%1974
House SparrowPasseridae672025-25%1976
Mourning DoveColumbidae622025+73%1974
House FinchFringillidae502025+56%1974
Western KingbirdTyrannidae442025+27%1974
Common RavenCorvidae442025+409%1981
Song SparrowPasserellidae432025+122%1976
Black TernLaridae431973n/an/a
European StarlingSturnidae402025-10%1974
Swainson's HawkAccipitridae31202530×1995
White-faced IbisThreskiornithidae302024n/an/a
MallardAnatidae262025+58%1976
Rock PigeonColumbidae222025+253%1974
Yellow-headed BlackbirdIcteridae211983-32%1974
Brewer's BlackbirdIcteridae202025-86%1974
Northern MockingbirdMimidae202025+18%1974
American CrowCorvidae162025+31%1974
Brown-headed CowbirdIcteridae162025+220%1976
Marsh WrenTroglodytidae162025-24%1976
Snowy EgretArdeidae152025-43%1974
Common YellowthroatParulidae142025+29%2023
KilldeerCharadriidae132025-83%1974
Western MeadowlarkIcteridae132025-80%1974
American GoldfinchFringillidae132025+125%2023
Great Blue HeronArdeidae122025+41%1974
Purple FinchFringillidae121972n/an/a
Red-tailed HawkAccipitridae122025+700%1976
Eurasian Collared-DoveColumbidae122025-72%2023
Loggerhead ShrikeLaniidae102025-54%1974
Black-necked StiltRecurvirostridae81995-72%1974
Ring-necked PheasantPhasianidae82025-39%1974
Yellow-billed MagpieCorvidae81995-11%1976
Horned LarkAlaudidae72025-39%1974
Great-tailed GrackleIcteridae62024n/an/a
Black-crowned Night HeronArdeidae52025+186%1974
Tricolored BlackbirdIcteridae51974-83%1972
American RobinTurdidae52025+70%1974

Source: USGS North American Breeding Bird Survey, retrieved 2026-08-14. A route is a sample, not a census.