BirdAnalyst
Species · BCR 9 · BBS 2025 Release · 1966–2024

Common Goldeneye In Great Basin

All regionsGreat BasinWaterfowl

Common Goldeneye in Great Basin has collapsed: down 81% on the route-weighted index since 1986.

-81%Since 1986TrendPercent 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 →
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 →

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 →

Common Goldeneye has collapsed in Great Basin: down 81% on the route-weighted index since 1986.

Routes In Great Basin

Routes recording Common Goldeneye in Great Basin.
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 →
Iron SpringsIDAHO62013
BrewsterWASHINGTON52004
IngallsCALIFORNIA21997
SpringfieldIDAHO21980
DorrisCALIFORNIA12011
Kyle CanyonIDAHO11986
TwispWASHINGTON12002
GlacierWASHINGTON12004
TonasketWASHINGTON12005
NighthawkWASHINGTON12013
MazamaWASHINGTON12001

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