BirdAnalyst
BBS Route · California · BCR 15

Tuolumne Grove Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 118 species recorded across 45 survey years, still active.

118Species 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 →
45Years 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
5Observers

Bird Species Found on California Tuolumne Grove

Top 40 of 118 species by most recent count. Each links to its species trend.

Species recorded on the Tuolumne Grove 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 TowheePasserellidae232024-19%1974
Western TanagerCardinalidae222024-16%1974
American RobinTurdidae202024-59%1974
Mountain QuailOdontophoridae172024+58%1974
Purple FinchFringillidae162024+36%1974
Red-breasted NuthatchSittidae152024-4%1974
Fox SparrowPasserellidae152024+81%1980
Lazuli BuntingCardinalidae152024+220%1978
California GullLaridae151979n/an/a
Acorn WoodpeckerPicidae142024+252%1974
Warbling VireoVireonidae142024-31%1974
Steller's JayCorvidae132024-8%1974
Lesser GoldfinchFringillidae132024-9%1974
Western Wood-PeweeTyrannidae122024-74%1974
Nashville WarblerParulidae122024-84%1974
MacGillivray's WarblerParulidae112024-17%1974
Common RavenCorvidae102024+178%1982
BushtitAegithalidae92015-6%1976
Chipping SparrowPasserellidae82024-31%1974
Red-winged BlackbirdIcteridae72024+0%1974
Northern House WrenTroglodytidae72024+100%1974
Mountain ChickadeeParidae72024-71%1974
Pine SiskinFringillidae72011+63%1975
Song SparrowPasserellidae72024+467%1977
Olive-sided FlycatcherTyrannidae62024-74%1974
California Scrub-JayCorvidae62024+325%1974
Cliff SwallowHirundinidae61979+100%1973
Black-headed GrosbeakCardinalidae52024-72%1974
Cassin's VireoVireonidae52024-56%1974
Black-throated Gray WarblerParulidae52024-81%1974
Brown CreeperCerthiidae52024-64%1974
Pileated WoodpeckerPicidae52023+50%1975
Dusky FlycatcherTyrannidae42024+23%1974
Brewer's BlackbirdIcteridae42024-61%1975
Hermit WarblerParulidae42024-89%1974
Golden-crowned KingletRegulidae42024-87%1974
Western BluebirdTurdidae42024+150%1977
Hammond's FlycatcherTyrannidae42024-58%1975
Brown-headed CowbirdIcteridae32024-36%1974
Barn SwallowHirundinidae31984-46%1974

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