BBS Route · California · BCR 32

Copperopolis Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 126 species recorded across 47 survey years, still active.

126Species Recorded
47Years Surveyed
19722024Span
3Observers

Bird Species Found on California Copperopolis

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

Species recorded on the Copperopolis route.
History
MallardAnatidae932024+233%1981
House FinchFringillidae752024+78%1974
Tricolored BlackbirdIcteridae702022+6%1981
Canada GooseAnatidae602024+895%2006
European StarlingSturnidae522024-15%1974
Western MeadowlarkIcteridae382024-51%1974
Acorn WoodpeckerPicidae352024-32%1974
Ash-throated FlycatcherTyrannidae302024+313%1974
Red-winged BlackbirdIcteridae272024+88%1974
Mourning DoveColumbidae242024-65%1974
Lesser GoldfinchFringillidae222024+56%1974
House SparrowPasseridae202024-21%1974
Western KingbirdTyrannidae182024-17%1974
White-breasted NuthatchSittidae162024-34%1980
Brown-headed CowbirdIcteridae152024+150%1975
White-throated SwiftApodidae132024-36%1974
Brewer's BlackbirdIcteridae132024-78%1974
Red-tailed HawkAccipitridae122024+58%1974
American White PelicanPelecanidae122022+300%2000
California QuailOdontophoridae112024-33%1974
Cliff SwallowHirundinidae112024-82%1974
Tree SwallowHirundinidae112024-16%1981
Oak TitmouseParidae102024-42%1974
KilldeerCharadriidae92024-44%1974
California Scrub-JayCorvidae82024-34%1974
Common RavenCorvidae72024+170%1997
Eurasian Collared-DoveColumbidae72024+117%2011
Turkey VultureCathartidae62024+206%1974
Wild TurkeyPhasianidae62024+200%2000
Eared GrebePodicipedidae62017+50%1991
Common MerganserAnatidae52021+700%1998
Mute SwanAnatidae52024n/an/a
Lesser NighthawkCaprimulgidae41994+20%1979
Lark SparrowPasserellidae42024-58%1974
PhainopeplaPtiliogonatidae42024-31%1974
Rock PigeonColumbidae42024-38%1983
Black PhoebeTyrannidae42024+83%1975
American CootRallidae42018+525%1985
Northern MockingbirdMimidae42022+0%1981
Forster's TernLaridae42001+0%1991

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