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BBS Route · California · BCR 5

French Gulch Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 69 species recorded across 8 survey years, still active.

69Species 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 →
8Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
2002–2011Span
3Observers

Bird Species Found on California French Gulch

Top 40 of 69 species by most recent count. Each links to its species trend.

Species recorded on the French Gulch 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
WrentitSylviidae222011-13%2004
American RobinTurdidae182011+143%2004
Steller's JayCorvidae162011-10%2004
Spotted TowheePasserellidae162011+30%2004
Olive-sided FlycatcherTyrannidae152010+53%2004
Orange-crowned WarblerParulidae92010+50%2003
Mountain ChickadeeParidae92011+141%2004
Acorn WoodpeckerPicidae82011+467%2003
Bewick's WrenTroglodytidae82010+100%2002
Red-breasted NuthatchSittidae82011-31%2004
Bell's SparrowPasserellidae82006+300%2004
Western TanagerCardinalidae72011-32%2004
Hutton's VireoVireonidae72010+83%2004
White-breasted NuthatchSittidae72010+75%2007
Dusky FlycatcherTyrannidae62010-46%2004
Chipping SparrowPasserellidae62011-38%2004
Blue-gray GnatcatcherPolioptilidae62007+0%2004
Townsend's SolitaireTurdidae62007+20%2004
Mourning DoveColumbidae52010+100%2004
Pileated WoodpeckerPicidae52010+200%2005
Western Wood-PeweeTyrannidae52011+143%2005
California TowheePasserellidae52007+400%2002
California Scrub-JayCorvidae42011+33%2004
Common RavenCorvidae42010+243%2004
Turkey VultureCathartidae42011+300%2003
BushtitAegithalidae42011n/an/a
Mountain QuailOdontophoridae32011-43%2004
Fox SparrowPasserellidae32011-23%2004
Red-breasted SapsuckerPicidae32007+50%2004
Hammond's FlycatcherTyrannidae32010+43%2005
Hairy WoodpeckerPicidae22011+0%2004
Ash-throated FlycatcherTyrannidae22011+89%2005
Purple FinchFringillidae22011-33%2004
Red CrossbillFringillidae22007-50%2002
Black-headed GrosbeakCardinalidae22011-45%2004
Tree SwallowHirundinidae22007+25%2003
Cassin's VireoVireonidae22011-46%2004
Nashville WarblerParulidae22011-41%2004
California ThrasherMimidae22005+100%2003
Northern House WrenTroglodytidae22005-33%2002

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