BirdAnalyst
BBS Route · California · BCR 9

Ravendale Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 99 species recorded across 36 survey years, still active.

99Species 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 →
36Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1973–2024Span
5Observers

Bird Species Found on California Ravendale

Top 40 of 99 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
Cliff SwallowHirundinidae166202426×1988
Brewer's BlackbirdIcteridae752024-46%1975
Western MeadowlarkIcteridae712024+132%1975
Brewer's SparrowPasserellidae522024+148%1975
Horned LarkAlaudidae352024+29%1975
Sage ThrasherMimidae292024+195%1975
Gray FlycatcherTyrannidae242008+191%1979
Common RavenCorvidae232024+96%1983
Vesper SparrowPasserellidae192024+79%1980
Mourning DoveColumbidae162024-40%1975
Loggerhead ShrikeLaniidae132024+0%1975
Wilson's SnipeScolopacidae92006+0%1975
Savannah SparrowPasserellidae92024-20%1979
Rock PigeonColumbidae81994n/an/a
Cinnamon TealAnatidae71998+36%1976
House FinchFringillidae72024-36%1976
Canada GooseAnatidae71996+17%1983
American KestrelFalconidae62024+100%1975
California QuailOdontophoridae62024+160%1976
Pinyon JayCorvidae62001+500%1990
Black-throated SparrowPasserellidae52007+33%1993
Say's PhoebeTyrannidae52024+400%1995
Chipping SparrowPasserellidae42024+125%1978
Bullock's OrioleIcteridae42024+125%1985
Lazuli BuntingCardinalidae42024+67%1995
California GullLaridae31999-50%1990
KilldeerCharadriidae32024-94%1975
Western KingbirdTyrannidae32008+300%1980
Spotted TowheePasserellidae32008+50%2000
Black TernLaridae21979+100%1973
MallardAnatidae22008-62%1983
Northern PintailAnatidae22001-98%1975
Spotted SandpiperScolopacidae22002+50%1978
Golden EagleAccipitridae22008+100%1980
Red-winged BlackbirdIcteridae22024-87%1975
Western Wood-PeweeTyrannidae22024+50%1993
Yellow-headed BlackbirdIcteridae22001-68%1976
House SparrowPasseridae22024-14%1976
Rock WrenTroglodytidae22024-33%1976
GadwallAnatidae22006+0%1987

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