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BBS Route · California · BCR 32

Jackson Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 89 species recorded across 14 survey years, no longer active.

89Species 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 →
14Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1972–1992Span
4Observers

Bird Species Found on California Jackson

Top 40 of 89 species by most recent count. Each links to its species trend.

Species recorded on the Jackson 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
House FinchFringillidae721992-14%1974
Spotted TowheePasserellidae591992+249%1974
Ash-throated FlycatcherTyrannidae49199212×1975
California QuailOdontophoridae451992+63%1974
Oak TitmouseParidae43199214×1975
Acorn WoodpeckerPicidae361992+21%1974
California TowheePasserellidae331992+71%1974
American RobinTurdidae321992+800%1974
Bank SwallowHirundinidae311979n/an/a
Western KingbirdTyrannidae301992+509%1974
Brown-headed CowbirdIcteridae30199213×1976
BushtitAegithalidae301992+336%1974
Cliff SwallowHirundinidae261992+249%1974
Black-headed GrosbeakCardinalidae251992+197%1974
Brewer's BlackbirdIcteridae241992+67%1974
Mourning DoveColumbidae231992+1%1974
Western MeadowlarkIcteridae231992+5%1974
Northern House WrenTroglodytidae211992+833%1974
Yellow-billed MagpieCorvidae201992+94%1974
Lesser GoldfinchFringillidae181992+47%1976
WrentitSylviidae181992+0%1974
European StarlingSturnidae171992+193%1974
White-breasted NuthatchSittidae171992+44%1977
Western TanagerCardinalidae161984+41%1978
California Scrub-JayCorvidae151992+119%1974
Western BluebirdTurdidae141992-30%1974
Nuttall's WoodpeckerPicidae121992+192%1978
Bullock's OrioleIcteridae81992+210%1974
Lark SparrowPasserellidae81992+333%1976
Lazuli BuntingCardinalidae81986+11%1979
Barn SwallowHirundinidae71992+121%1974
House SparrowPasseridae71992-16%1974
Pied-billed GrebePodicipedidae51986+400%1972
Tree SwallowHirundinidae51992+153%1974
Black PhoebeTyrannidae51992+220%1976
Yellow WarblerParulidae51984+240%1978
Turkey VultureCathartidae41992+7%1974
Red-winged BlackbirdIcteridae41992+215%1974
American GoldfinchFringillidae41973n/an/a
Western Wood-PeweeTyrannidae41992-12%1978

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