BirdAnalyst
BBS Route · California · BCR 9

Ravendale Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 101 species recorded across 37 survey years, still active.

101Species 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 →
37Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1973–2025Span
5Observers

Bird Species Found on California Ravendale

Top 40 of 101 species by most recent count. Each links to its species trend.

Species recorded on the Ravendale 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 BlackbirdIcteridae1442025-34%1975
Cliff SwallowHirundinidae119202525×1988
Brewer's SparrowPasserellidae662025+121%1975
Western MeadowlarkIcteridae552025+96%1975
Horned LarkAlaudidae442025+25%1975
Mourning DoveColumbidae302025-41%1975
Common RavenCorvidae302025+173%1983
Tree SwallowHirundinidae262025+238%1979
Turkey VultureCathartidae192025+600%1987
Sage ThrasherMimidae192025+110%1975
Vesper SparrowPasserellidae192025+116%1980
California QuailOdontophoridae172025+460%1976
House FinchFringillidae142025-56%1976
Common NighthawkCaprimulgidae112025+55%1979
Wilson's SnipeScolopacidae92006+0%1975
Sagebrush SparrowPasserellidae92025+22%1976
Gray FlycatcherTyrannidae82025+155%1979
Rock PigeonColumbidae81994n/an/a
Cinnamon TealAnatidae71998+36%1976
Canada GooseAnatidae71996+17%1983
Spotted TowheePasserellidae72025+200%2000
Red-tailed HawkAccipitridae62025+143%1976
American KestrelFalconidae62025+160%1975
Loggerhead ShrikeLaniidae62025+25%1975
Pinyon JayCorvidae62001+500%1990
California Scrub-JayCorvidae62025+200%2024
Say's PhoebeTyrannidae52024+400%1995
Chipping SparrowPasserellidae42024+125%1978
Rock WrenTroglodytidae42025-17%1976
Brown-headed CowbirdIcteridae42025-50%1978
Lark SparrowPasserellidae42025-18%1982
Bald EagleAccipitridae42025+60%2003
California GullLaridae31999-50%1990
KilldeerCharadriidae32025-94%1975
Black-throated SparrowPasserellidae32025+67%1993
Western KingbirdTyrannidae32008+300%1980
Bullock's OrioleIcteridae32025+125%1985
Black TernLaridae21979+100%1973
MallardAnatidae22008-62%1983
Northern PintailAnatidae22001-98%1975

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