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BBS Route · California · BCR 32

Gold Hill Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 111 species recorded across 51 survey years, still active.

111Species 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 →
51Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1971–2024Span
4Observers

Bird Species Found on California Gold Hill

Top 40 of 111 species by most recent count. Each links to its species trend.

Species recorded on the Gold Hill 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
House FinchFringillidae652024+267%1974
Tricolored BlackbirdIcteridae651990n/an/a
Lesser GoldfinchFringillidae582024-16%1979
Mourning DoveColumbidae372024-14%1974
Cliff SwallowHirundinidae352024+303%1974
Acorn WoodpeckerPicidae342024+22%1974
House SparrowPasseridae322024+53%1974
California Scrub-JayCorvidae312024+100%1974
Oak TitmouseParidae312024+567%1975
European StarlingSturnidae302024-6%1974
White-breasted NuthatchSittidae302024+44%1979
Cedar WaxwingBombycillidae302010-40%2001
Ash-throated FlycatcherTyrannidae292024+128%1979
California TowheePasserellidae252024+146%1976
Turkey VultureCathartidae242024+543%1974
Red-winged BlackbirdIcteridae222024+305%1974
Bullock's OrioleIcteridae192024+13%1975
Spotted TowheePasserellidae192024-16%1978
Western KingbirdTyrannidae162024-13%1974
California QuailOdontophoridae142024-10%1974
Brewer's BlackbirdIcteridae142024-75%1974
Black-headed GrosbeakCardinalidae142024+77%1979
Canada GooseAnatidae112024+823%1993
Northern MockingbirdMimidae102024+389%1979
Brown-headed CowbirdIcteridae102024-10%1979
BushtitAegithalidae102024-73%1980
Western BluebirdTurdidae92024+129%1974
Wild TurkeyPhasianidae9202415×1988
Common RavenCorvidae92024+275%2015
American RobinTurdidae82024+8%1974
Nuttall's WoodpeckerPicidae72024+50%1978
Tree SwallowHirundinidae72024+263%1981
Black PhoebeTyrannidae62024+40%1974
MallardAnatidae52024-20%1975
Orange-crowned WarblerParulidae52024+13%1979
Bewick's WrenTroglodytidae52024-44%1980
Northern House WrenTroglodytidae52024+50%1980
Wood DuckAnatidae52024+100%1984
Red-shouldered HawkAccipitridae52023-29%1998
Eurasian Collared-DoveColumbidae52024+633%2017

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