BirdAnalyst
Species · BCR 15 · BBS 2026 Release · 1966–2025

Pine Grosbeak In Sierra Nevada

All regionsSierra NevadaForest birds

Pine Grosbeak in Sierra Nevada has declined: down 44% on the route-weighted index since 1984.

-44%Since 1984TrendPercent 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 →
5Routes 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 →
15YearsYears 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 Pine Grosbeak in Sierra Nevada. See the full index history below.

Routes In Sierra Nevada

Routes recording Pine Grosbeak in Sierra Nevada.
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 →
WestvilleCALIFORNIA21984
WoodfordsCALIFORNIA12025
Greenhorn MtCALIFORNIA11974
Meadow ValleyCALIFORNIA11999
Little TruckeeCALIFORNIA12004

Source: USGS North American Breeding Bird Survey, retrieved 2026-08-14.