BirdAnalyst
BBS Route · California · BCR 5

Hullville Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 133 species recorded across 45 survey years, still active.

133Species 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 →
1968–2019Span
9Observers

Bird Species Found on California Hullville

Top 40 of 133 species by most recent count. Each links to its species trend.

Species recorded on the Hullville 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
Western TanagerCardinalidae322019+17%1970
Spotted TowheePasserellidae262019+103%1970
Black-headed GrosbeakCardinalidae252019+15%1970
Cliff SwallowHirundinidae252019-49%1970
Steller's JayCorvidae232019+39%1970
California QuailOdontophoridae222019+55%1970
California Scrub-JayCorvidae162019+4%1970
Blue-gray GnatcatcherPolioptilidae122019+63%1973
Cassin's VireoVireonidae112019+238%1970
Canada GooseAnatidae102007n/an/a
Common RavenCorvidae92019+480%1971
Orange-crowned WarblerParulidae92019+575%1972
Red-breasted NuthatchSittidae92019+33%1971
Acorn WoodpeckerPicidae82019-61%1970
Lesser GoldfinchFringillidae82019-68%1971
Tree SwallowHirundinidae82019+67%1974
Clark's NutcrackerCorvidae82006+700%1988
Purple FinchFringillidae62019+0%1970
Nashville WarblerParulidae62019-8%1971
Northern House WrenTroglodytidae62018+129%1971
California TowheePasserellidae62019+86%1971
BushtitAegithalidae62019-21%1972
Band-tailed PigeonColumbidae62019+11%1986
Mountain QuailOdontophoridae52019+109%1970
Mourning DoveColumbidae52019-53%1970
Western Wood-PeweeTyrannidae52019-65%1970
Black-throated Gray WarblerParulidae52019+24%1970
WrentitSylviidae52019-55%1970
Turkey VultureCathartidae42019+9%1971
Ash-throated FlycatcherTyrannidae42019-19%1971
Hermit WarblerParulidae42018+15%1971
Western BluebirdTurdidae42019-50%1970
Cassin's FinchFringillidae42003-63%1976
Lark SparrowPasserellidae42016-22%1975
Barn SwallowHirundinidae42019-14%1974
Golden-crowned KingletRegulidae42019+100%1996
Red-breasted SapsuckerPicidae32019+0%1974
Hammond's FlycatcherTyrannidae32007-55%1972
Brown-headed CowbirdIcteridae32019+67%1971
Chipping SparrowPasserellidae32019-92%1970

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