BirdAnalyst
Species · Washington · BBS 2025 Release · 1966–2024

Pine Grosbeak Population Trend in Washington

All statesGeneralists

Pine Grosbeak in Washington has fallen sharply: down 59% on the route-weighted index since 1993.

-59%Since 1993TrendPercent 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 StateSurvey 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 Pine Grosbeak Trends in WashingtonNotable 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 declinecomputed 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 →

Pine Grosbeak has fallen sharply in Washington: down 59% on the route-weighted index since 1993.

Pine Grosbeak Survey Routes in Washington

Routes recording Pine Grosbeak in Washington.
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 →
Mazama420011993
Mt Rainier420122001
Winthrop319911989
Twin Lakes220182018
L. Wenatchee120212021
L Pend O Nwr120212021
Nighthawk119991999
Cloverland120052005
Hurricane Rg120232004
Greenwater120222017
Sullivan Lake 2120232016

Pine Grosbeak Population Trend in Other States

alaskaarizonacaliforniacoloradoidahomaineminnesotamontananevadanew-mexicooregonutahwisconsinwyoming

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