BirdAnalyst
BBS Route · California · BCR 15

Coulterville Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 87 species recorded across 22 survey years, still active.

87Species 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 →
22Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1997–2019Span
4Observers

Bird Species Found on California Coulterville

Top 40 of 87 species by most recent count. Each links to its species trend.

Species recorded on the Coulterville 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
European StarlingSturnidae100201625×2001
Spotted TowheePasserellidae472019-42%1999
WrentitSylviidae302019+30%1999
Acorn WoodpeckerPicidae242019-46%1999
American RobinTurdidae162019-38%1999
BushtitAegithalidae152019+65%1999
California Scrub-JayCorvidae142019-38%1999
California QuailOdontophoridae122019-75%1999
Mourning DoveColumbidae112019-55%1999
Lesser GoldfinchFringillidae112019-13%2000
Western Wood-PeweeTyrannidae102019-30%1999
Black-headed GrosbeakCardinalidae102019-61%1999
Purple FinchFringillidae92019-46%1999
Hutton's VireoVireonidae92019+62%1999
Steller's JayCorvidae82019-28%1999
Brown CreeperCerthiidae82019+13%1999
House FinchFringillidae82017+133%2001
Blue-gray GnatcatcherPolioptilidae72019-36%1999
Fox SparrowPasserellidae62019+18%2006
Red-breasted NuthatchSittidae62019+367%2000
Turkey VultureCathartidae52012+200%2002
Red-winged BlackbirdIcteridae52019+33%2008
Red CrossbillFringillidae52002n/an/a
Oak TitmouseParidae42019-72%1999
Common RavenCorvidae42019+83%2004
Western KingbirdTyrannidae42016+75%2004
Band-tailed PigeonColumbidae32019+67%1999
Anna's HummingbirdTrochilidae32019-17%1999
Ash-throated FlycatcherTyrannidae32019-13%1999
Western TanagerCardinalidae32019-42%1999
Cliff SwallowHirundinidae32019-72%1999
Northern Rough-winged SwallowHirundinidae32012+50%1997
PhainopeplaPtiliogonatidae32016+0%2013
Hairy WoodpeckerPicidae22019+140%2000
Brown-headed CowbirdIcteridae22018-73%1999
Brewer's BlackbirdIcteridae22019+0%1999
Chipping SparrowPasserellidae22016+0%1999
Red-tailed HawkAccipitridae22019+20%2008
White-breasted NuthatchSittidae22016+133%2003
Western BluebirdTurdidae22019+200%2002

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