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

American Wigeon Population Trend in Nevada

All statesWaterfowl

American Wigeon in Nevada has declined: down 44% on the route-weighted index since 1992.

-44%Since 1992TrendPercent 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 →
10Routes 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 →
16YearsYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →

Notable American Wigeon Trends in NevadaNotable 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 American Wigeon in Nevada. See the full index history below.

American Wigeon Survey Routes in Nevada

Routes recording American Wigeon in 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 →
Chimney Res.1020172017
Midas219941993
Ranchogrande219921992
Humboldt Nf219941994
Cortez219731973
Eureka220022000
Hiko219731973
Bald Mtn.120011996
Gardnerville120042002
Dobbin Creek120161972

American Wigeon Population Trend in Other States

alaskacaliforniacoloradoidahokansasmichiganminnesotamontananebraskanew-mexiconorth-dakotaohiooregonpennsylvaniasouth-dakotatexasutahwashingtonwisconsinwyoming

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