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BBS Route · California · BCR 15

Woodfords Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 126 species recorded across 50 survey years, still active.

126Species 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 →
50Years 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
6Observers

Bird Species Found on California Woodfords

Top 40 of 126 species by most recent count. Each links to its species trend.

Species recorded on the Woodfords 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
Western Wood-PeweeTyrannidae362025-7%1974
Brewer's BlackbirdIcteridae322025-59%1974
Western TanagerCardinalidae282025+69%1974
American RobinTurdidae202025-8%1974
Mountain ChickadeeParidae172025-13%1974
Warbling VireoVireonidae172025+124%1975
Violet-green SwallowHirundinidae122025-73%1976
Common RavenCorvidae122025+220%1990
Steller's JayCorvidae112025-53%1974
House FinchFringillidae102025+260%1998
California QuailOdontophoridae92025+0%1975
MacGillivray's WarblerParulidae92025-8%1981
Yellow WarblerParulidae82025-66%1976
Rock WrenTroglodytidae72025+50%1980
Song SparrowPasserellidae62025-50%1974
BushtitAegithalidae62025-10%1986
Spotted TowheePasserellidae62025-42%1975
Mourning DoveColumbidae52025+0%1975
Black-headed GrosbeakCardinalidae52025-35%1975
Cliff SwallowHirundinidae52025-92%1975
Cassin's FinchFringillidae52024-43%1977
Golden-crowned KingletRegulidae52025-50%1977
Dusky FlycatcherTyrannidae52023+0%1985
European StarlingSturnidae42025-72%1980
Green-tailed TowheePasserellidae42025-76%1975
White-headed WoodpeckerPicidae42025+67%1984
Hairy WoodpeckerPicidae42025+200%1980
Canada GooseAnatidae42016+100%1984
Bald EagleAccipitridae42022+300%2021
Chipping SparrowPasserellidae32025-69%1975
Tree SwallowHirundinidae32024-47%1975
American DipperCinclidae32025+0%1976
Hermit ThrushTurdidae32025+57%1975
Pygmy NuthatchSittidae32025+17%1977
California GullLaridae31983+200%1977
Lesser GoldfinchFringillidae32025-33%1984
Turkey VultureCathartidae32024+0%2002
White-throated SwiftApodidae22021+14%1974
Red-winged BlackbirdIcteridae22025-65%1976
Fox SparrowPasserellidae22025-50%1975

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