BirdAnalyst
BBS Route · California · BCR 15

Woodfords Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 125 species recorded across 49 survey years, still active.

125Species 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 →
49Years 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
6Observers

Bird Species Found on California Woodfords

Top 40 of 125 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-PeweeTyrannidae412024-14%1974
Brewer's BlackbirdIcteridae332024-50%1974
American RobinTurdidae242024-16%1974
Steller's JayCorvidae202024-39%1974
Warbling VireoVireonidae202024+100%1975
Western TanagerCardinalidae152024+36%1974
Spotted SandpiperScolopacidae82024+150%1975
Lazuli BuntingCardinalidae82024+22%1986
Red-breasted SapsuckerPicidae72022+18%1976
Rock WrenTroglodytidae72024-10%1980
Spotted TowheePasserellidae62024-46%1975
Green-tailed TowheePasserellidae62024-68%1975
Song SparrowPasserellidae52024-60%1974
Violet-green SwallowHirundinidae52024-82%1976
California QuailOdontophoridae52024-22%1975
Cliff SwallowHirundinidae52024-88%1975
Northern House WrenTroglodytidae52024+9%1975
Cassin's FinchFringillidae52024-43%1977
White-headed WoodpeckerPicidae52024+17%1984
House FinchFringillidae52024+120%1998
Dusky FlycatcherTyrannidae52023+0%1985
Pine SiskinFringillidae42024-63%1976
Chipping SparrowPasserellidae42024-69%1975
Canada GooseAnatidae42016+100%1984
Bald EagleAccipitridae42022+300%2021
Mountain ChickadeeParidae32024-40%1974
European StarlingSturnidae32024-83%1980
Tree SwallowHirundinidae32024-47%1975
Yellow WarblerParulidae32023-73%1976
Pygmy NuthatchSittidae32024+100%1977
California GullLaridae31983+200%1977
Common MerganserAnatidae32022+13%1991
Turkey VultureCathartidae32024+0%2002
Mourning DoveColumbidae22024-20%1975
White-throated SwiftApodidae22021+14%1974
Red-winged BlackbirdIcteridae22024-70%1976
Purple FinchFringillidae22024+20%1974
Fox SparrowPasserellidae22024+30%1975
Red-tailed HawkAccipitridae22024+50%1975
Vesper SparrowPasserellidae22017-67%1975

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