BirdAnalyst
Species · BCR 32 · BBS 2025 Release · 1966–2024

Varied Thrush In Coastal California

All regionsCoastal CaliforniaForest birds

Varied Thrush in Coastal California has risen sharply: up 58% on the route-weighted index since 1996.

+58%Since 1996TrendPercent 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 →
3Routes In RegionSurvey routesHow many standard-protocol BBS routes contributed counts. More routes means a steadier, better-sampled index; very thin coverage is suppressed.Full methodology →
17YearsYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →

Notable SignalsNotable signalsLong-arc shifts the engine flags automatically — sustained declines or increases large enough to stand out from year-to-year noise.Full methodology →

No notable trend signals for Varied Thrush in Coastal California. See the full index history below.

Routes In Coastal California

Routes recording Varied Thrush in Coastal California.
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 →
Lake SuccessCALIFORNIA11977
Waterman GapCALIFORNIA12016
PescaderoCALIFORNIA12013

Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.