BirdAnalyst
BBS Route · California · BCR 32

Zamora Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 85 species recorded across 26 survey years, still active.

85Species 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 →
26Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1972–2025Span
11Observers

Bird Species Found on California Zamora

Top 40 of 85 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 SwallowHirundinidae2502025-33%1975
Red-winged BlackbirdIcteridae1182025+15%1975
House FinchFringillidae892025+32%1975
Mourning DoveColumbidae672025+51%1975
Brewer's BlackbirdIcteridae522025-93%1975
Western KingbirdTyrannidae462025+127%1975
American GoldfinchFringillidae38202511×2017
Yellow-billed MagpieCorvidae332025-59%1975
White-faced IbisThreskiornithidae302017+500%2008
House SparrowPasseridae292025-17%1975
European StarlingSturnidae282025-63%1975
California Scrub-JayCorvidae262025+38%1975
Common RavenCorvidae21202512×2004
Lesser GoldfinchFringillidae212025+95%2017
Northern MockingbirdMimidae202025+54%1975
American CrowCorvidae152025+135%1975
Tree SwallowHirundinidae122025+633%1988
Great EgretArdeidae122025+700%1985
KilldeerCharadriidae112025-47%1975
BushtitAegithalidae102023+233%2003
Western Cattle-EgretArdeidae92008+800%2004
Rock PigeonColumbidae82025-74%1975
Western Wood-PeweeTyrannidae82019+400%2004
American RobinTurdidae82025+211%1976
Violet-green SwallowHirundinidae81974n/an/a
Black-necked StiltRecurvirostridae82004+30%1980
Nuttall's WoodpeckerPicidae82025+78%1985
Swainson's HawkAccipitridae72025+340%1982
Barn SwallowHirundinidae62025-36%1975
Red-tailed HawkAccipitridae52025-10%1977
Black PhoebeTyrannidae52025+233%1983
Eurasian Collared-DoveColumbidae52025-13%2019
MallardAnatidae42025-22%1975
Ash-throated FlycatcherTyrannidae42023+13%1977
American AvocetRecurvirostridae41988+100%1980
Anna's HummingbirdTrochilidae42025+100%1983
Northern Rough-winged SwallowHirundinidae42024+36%1988
Northern House WrenTroglodytidae42025+29%2017
Song SparrowPasserellidae42025+17%2003
Wild TurkeyPhasianidae42025+0%2018

Source: USGS North American Breeding Bird Survey, retrieved 2026-08-14. A route is a sample, not a census.