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

Northern Shoveler In Coastal California

All regionsCoastal CaliforniaWaterfowl

Northern Shoveler in Coastal California has surged: up 244% on the route-weighted index since 1977.

+244%Since 1977TrendPercent 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 →
11Routes 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 →

long arc increasecomputed indexTrend sourceWhether the figure is our own computed route-weighted index or an official USGS modeled estimate. The current build labels every trend as computed.Full methodology →

Northern Shoveler has surged in Coastal California: up 244% on the route-weighted index since 1977.

Routes In Coastal California

Routes recording Northern Shoveler 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 →
JacumbaCALIFORNIA101988
AtwaterCALIFORNIA41982
Mark WestCALIFORNIA31978
Red BluffCALIFORNIA21977
HughsonCALIFORNIA22011
ShafterCALIFORNIA21988
CoyoteCALIFORNIA22006
OrlandCALIFORNIA12012
FairfaxCALIFORNIA11988
GlennCALIFORNIA12000
WestleyCALIFORNIA11979

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