BirdAnalyst
BBS Route · California · BCR 32

Fairfax Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 131 species recorded across 45 survey years, still active.

131Species 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 →
45Years 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
4Observers

Bird Species Found on California Fairfax

Top 40 of 131 species by most recent count. Each links to its species trend.

Species recorded on the Fairfax 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
Acorn WoodpeckerPicidae652024+59%1974
Violet-green SwallowHirundinidae472024+77%1974
Spotted TowheePasserellidae432024+25%1974
Double-crested CormorantPhalacrocoracidae322024+744%1975
American CrowCorvidae322024+95%1974
Steller's JayCorvidae302024-23%1974
Cliff SwallowHirundinidae302024-73%1974
Chestnut-backed ChickadeeParidae302024+50%1974
Band-tailed PigeonColumbidae252024+4%1974
Western GullLaridae222024+5%1974
Mourning DoveColumbidae202024-44%1974
Cedar WaxwingBombycillidae20199020×1986
Hermit ThrushTurdidae192024+267%1978
WrentitSylviidae182024+189%1974
Red-winged BlackbirdIcteridae172019-74%1974
Hairy WoodpeckerPicidae162024+500%1974
Anna's HummingbirdTrochilidae162024+600%1976
Pine SiskinFringillidae162024-80%1974
Warbling VireoVireonidae162024-13%1974
Swainson's ThrushTurdidae162024+127%1974
American RobinTurdidae152024-12%1974
Ring-billed GullLaridae151989+28%1975
Red-shouldered HawkAccipitridae152024+55%1985
Canada GooseAnatidae152024+424%1993
BushtitAegithalidae142024+70%1974
Red-breasted NuthatchSittidae132024+183%1974
Common RavenCorvidae122024+115%1975
House FinchFringillidae122024-89%1974
Song SparrowPasserellidae122024-11%1974
Bonaparte's GullLaridae121986+200%1973
Orange-crowned WarblerParulidae112019-75%1974
Snowy EgretArdeidae102024+225%1974
California QuailOdontophoridae102024-51%1974
Bewick's WrenTroglodytidae92024+229%1974
Great EgretArdeidae82024-59%1974
California Scrub-JayCorvidae82024-31%1974
California TowheePasserellidae82024-73%1974
Brown CreeperCerthiidae82024-15%1974
Olive-sided FlycatcherTyrannidae72024+37%1974
Oak TitmouseParidae72024+11%1974

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