BirdAnalyst
BBS Route · California · BCR 5

Junction Cty Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 104 species recorded across 34 survey years, still active.

104Species 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 →
34Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1972–2012Span
3Observers

Bird Species Found on California Junction Cty

Top 40 of 104 species by most recent count. Each links to its species trend.

Species recorded on the Junction Cty 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
Cliff SwallowHirundinidae432012-55%1975
Western TanagerCardinalidae192012+33%1974
Western Wood-PeweeTyrannidae182011+0%1974
Black-headed GrosbeakCardinalidae132012+64%1974
California Scrub-JayCorvidae112012+170%1975
Steller's JayCorvidae92012+3%1974
Spotted TowheePasserellidae92012+95%1974
American CrowCorvidae92012+325%1996
Acorn WoodpeckerPicidae82012+160%1977
California QuailOdontophoridae72012+94%1975
Common MerganserAnatidae52012+75%1974
Nashville WarblerParulidae52012+160%1975
Orange-crowned WarblerParulidae52012+40%1975
MacGillivray's WarblerParulidae52012+86%1992
Hammond's FlycatcherTyrannidae52011-37%1993
European StarlingSturnidae42012-59%1975
Brown-headed CowbirdIcteridae42012+30%1974
Song SparrowPasserellidae42012-23%1974
Lazuli BuntingCardinalidae42011+275%1975
Tree SwallowHirundinidae42012-65%1975
Mourning DoveColumbidae32010-41%1974
Red-winged BlackbirdIcteridae32011-18%1975
Northern Rough-winged SwallowHirundinidae32012+29%1976
Hutton's VireoVireonidae32012+133%1980
Hermit WarblerParulidae32012+378%1974
Yellow-breasted ChatIcteriidae32012-23%1974
Great Horned OwlStrigidae31994+50%1974
Pileated WoodpeckerPicidae32011+0%1976
Chestnut-backed ChickadeeParidae32011-42%1977
Band-tailed PigeonColumbidae32012-64%1978
Mountain ChickadeeParidae32011+20%1993
Hairy WoodpeckerPicidae22011+100%1974
Common RavenCorvidae22012+425%1976
Purple FinchFringillidae22012+33%1974
Pine SiskinFringillidae22008-71%1972
Purple MartinHirundinidae21984+100%1972
Barn SwallowHirundinidae22004-82%1974
Warbling VireoVireonidae22011-68%1974
Cassin's VireoVireonidae22012-23%1974
Black-throated Gray WarblerParulidae22012+40%1976

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