BirdAnalyst
BBS Route · California · BCR 32

Zamora Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 84 species recorded across 25 survey years, still active.

84Species 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 →
25Years 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
11Observers

Bird Species Found on California Zamora

Top 40 of 84 species by most recent count. Each links to its species trend.

Species recorded on the Zamora 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
Cliff SwallowHirundinidae3062024-47%1975
Red-winged BlackbirdIcteridae1742024-13%1975
Brewer's BlackbirdIcteridae612024-95%1975
House FinchFringillidae542024+20%1975
Western KingbirdTyrannidae452024+79%1975
White-faced IbisThreskiornithidae302017+500%2008
Mourning DoveColumbidae262024+19%1975
European StarlingSturnidae252024-55%1975
California Scrub-JayCorvidae222024+27%1975
Barn SwallowHirundinidae202024-47%1975
American CrowCorvidae192024+75%1975
Common RavenCorvidae182024+975%2004
KilldeerCharadriidae172024-55%1975
House SparrowPasseridae162024-21%1975
American GoldfinchFringillidae152024+300%2017
Northern MockingbirdMimidae142024+46%1975
Eurasian Collared-DoveColumbidae132024+65%2019
Yellow-billed MagpieCorvidae112024-77%1975
American RobinTurdidae112024+200%1976
Swainson's HawkAccipitridae102024+300%1982
BushtitAegithalidae102023+233%2003
Tree SwallowHirundinidae92024+300%1988
Lesser GoldfinchFringillidae92024+45%2017
Western Cattle-EgretArdeidae92008+800%2004
Western Wood-PeweeTyrannidae82019+400%2004
Violet-green SwallowHirundinidae81974n/an/a
Black-necked StiltRecurvirostridae82004+30%1980
Turkey VultureCathartidae72024-39%1976
Nuttall's WoodpeckerPicidae72024+0%1985
Great EgretArdeidae72024+367%1985
Rock PigeonColumbidae52024-86%1975
American KestrelFalconidae52024-79%1975
Ash-throated FlycatcherTyrannidae42023+13%1977
American AvocetRecurvirostridae41988+100%1980
Northern Rough-winged SwallowHirundinidae42024+36%1988
Northern House WrenTroglodytidae42024-14%2017
MallardAnatidae32023-17%1975
California QuailOdontophoridae32024+14%1978
Brown-headed CowbirdIcteridae32024-35%1978
White-tailed KiteAccipitridae32004-40%1976

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