BirdAnalyst
BBS Route · California · BCR 15

Johnsville Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 97 species recorded across 37 survey years, still active.

97Species 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 →
37Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1975–2025Span
6Observers

Bird Species Found on California Johnsville

Top 40 of 97 species by most recent count. Each links to its species trend.

Species recorded on the Johnsville 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 TanagerCardinalidae472025+352%1977
Hermit WarblerParulidae402025+841%1977
Western Wood-PeweeTyrannidae292025+107%1977
Spotted TowheePasserellidae262025+313%1977
Mountain ChickadeeParidae262025-17%1977
Steller's JayCorvidae232025-29%1977
Fox SparrowPasserellidae232025-12%1977
Red-breasted NuthatchSittidae212025+306%1977
Yellow WarblerParulidae182025+660%1977
Warbling VireoVireonidae172025+200%1977
Nashville WarblerParulidae122025+245%1978
Dusky FlycatcherTyrannidae112025+41%1978
Cassin's VireoVireonidae112025+58%1977
MacGillivray's WarblerParulidae112025+23%1977
Hermit ThrushTurdidae102025+93%1977
American RobinTurdidae92025-67%1977
Green-tailed TowheePasserellidae82025+267%1979
Ruby-crowned KingletRegulidae62019+100%2018
Chipping SparrowPasserellidae52025+220%1977
Song SparrowPasserellidae52025+50%1977
Pileated WoodpeckerPicidae52025+175%1980
Wild TurkeyPhasianidae52025n/an/a
White-headed WoodpeckerPicidae42025+17%1977
Olive-sided FlycatcherTyrannidae42025-35%1977
Purple FinchFringillidae42025-15%1978
Brown CreeperCerthiidae42025-56%1977
Townsend's SolitaireTurdidae42025-50%1979
Common RavenCorvidae42025+120%2011
Pine SiskinFringillidae42024+67%2010
BushtitAegithalidae42015n/an/a
Black-headed GrosbeakCardinalidae32025+150%1978
Band-tailed PigeonColumbidae32025-85%1979
Cassin's FinchFringillidae32025+33%1981
Mountain BluebirdTurdidae32014+33%2009
European StarlingSturnidae32012n/an/a
White-crowned SparrowPasserellidae32019+50%2018
Red-breasted SapsuckerPicidae22025-33%1978
Black-throated Gray WarblerParulidae22025-29%1978
Pacific WrenTroglodytidae22025+33%1981
Golden-crowned KingletRegulidae22025+120%1977

Source: USGS North American Breeding Bird Survey, retrieved 2026-08-14. A route is a sample, not a census.