BirdAnalyst
BBS Route · California · BCR 15

Paxton Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 115 species recorded across 23 survey years, still active.

115Species 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 →
23Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1998–2025Span
3Observers

Bird Species Found on California Paxton

Top 40 of 115 species by most recent count. Each links to its species trend.

Species recorded on the Paxton 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
Red-winged BlackbirdIcteridae2362025+72%2001
Cliff SwallowHirundinidae1842025-15%2001
American RobinTurdidae482025+2%2001
Western Wood-PeweeTyrannidae432025+13%2001
Brewer's BlackbirdIcteridae302025-53%2001
Lazuli BuntingCardinalidae272025+760%2001
Black-headed GrosbeakCardinalidae262025+38%2001
Mourning DoveColumbidae242025+150%2001
Spotted TowheePasserellidae212025+6%2001
American CrowCorvidae182024+73%2001
Song SparrowPasserellidae182025-23%2001
Steller's JayCorvidae152025-58%2001
Bullock's OrioleIcteridae152025+100%2001
Western MeadowlarkIcteridae142025+31%2001
Eurasian Collared-DoveColumbidae132025+357%2014
Brown-headed CowbirdIcteridae122025-10%2001
Western TanagerCardinalidae122025-78%2001
Violet-green SwallowHirundinidae122025+450%2003
Lesser GoldfinchFringillidae102025-33%2001
Yellow WarblerParulidae102025+32%2001
Sandhill CraneGruidae102025+73%2004
California QuailOdontophoridae92025+0%2001
Canada GooseAnatidae82025+30%2003
Wilson's SnipeScolopacidae82025-13%2003
BushtitAegithalidae82024+100%2016
European StarlingSturnidae62025+67%2001
Barn SwallowHirundinidae62025-33%2003
Northern House WrenTroglodytidae62025+33%2001
Bank SwallowHirundinidae62025-54%2003
Rock PigeonColumbidae62025-45%2007
Western KingbirdTyrannidae52025+63%2008
Purple FinchFringillidae52025-20%2004
Yellow-headed BlackbirdIcteridae52010+400%2004
House FinchFringillidae52012+400%2007
MallardAnatidae42025+167%2001
Black-billed MagpieCorvidae42024-26%2001
Warbling VireoVireonidae42025-38%2001
Cassin's VireoVireonidae42025-57%2001
Nashville WarblerParulidae42025-48%2001
Common RavenCorvidae42025+71%2003

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