BirdAnalyst
BBS Route · California · BCR 32

Stonyford Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 68 species recorded across 3 survey years, still active.

68Species 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 →
3Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
2015–2018Span
1Observers

Bird Species Found on California Stonyford

Top 40 of 68 species by most recent count. Each links to its species trend.

Species recorded on the Stonyford 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
Spotted TowheePasserellidae452018+22%2015
WrentitSylviidae442018+29%2015
Western TanagerCardinalidae312018+72%2015
Black-headed GrosbeakCardinalidae292018+53%2015
Bewick's WrenTroglodytidae282018+250%2015
Red-breasted NuthatchSittidae242018+243%2015
Ash-throated FlycatcherTyrannidae222018+5%2015
California QuailOdontophoridae202018-20%2015
Cassin's VireoVireonidae202018+5%2015
BushtitAegithalidae162018+46%2016
Acorn WoodpeckerPicidae152018+36%2015
California Scrub-JayCorvidae132018+86%2015
Lesser GoldfinchFringillidae132018+30%2015
Western MeadowlarkIcteridae122018+200%2015
Western Wood-PeweeTyrannidae112018+0%2015
Bell's SparrowPasserellidae112018-21%2015
Warbling VireoVireonidae102018+67%2015
Blue-gray GnatcatcherPolioptilidae102018+67%2015
Mountain QuailOdontophoridae92018-31%2015
Orange-crowned WarblerParulidae82018+300%2015
Black-throated Gray WarblerParulidae82018-43%2015
Northern House WrenTroglodytidae82018-11%2015
Mountain ChickadeeParidae82018-11%2015
Eurasian Collared-DoveColumbidae82018-11%2015
Mourning DoveColumbidae72018-59%2015
Purple FinchFringillidae72018+17%2015
Tree SwallowHirundinidae72018+40%2015
Hairy WoodpeckerPicidae62018+20%2015
Brown-headed CowbirdIcteridae62018-14%2015
House FinchFringillidae62018-50%2015
California ThrasherMimidae62018+100%2015
Black PhoebeTyrannidae52018+400%2015
Chipping SparrowPasserellidae52018+400%2015
European StarlingSturnidae42016+100%2015
Lark SparrowPasserellidae42018+0%2015
California TowheePasserellidae42018-64%2015
American RobinTurdidae42018+33%2016
Pileated WoodpeckerPicidae32018+0%2015
Dusky FlycatcherTyrannidae32018-25%2015
Steller's JayCorvidae32018-70%2015

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