BirdAnalyst
Species · BCR 15 · BBS 2025 Release · 1966–2024

Gadwall In Sierra Nevada

All regionsSierra NevadaWaterfowl

Gadwall in Sierra Nevada has held roughly steady: down 5% on the route-weighted index since 1976.

-5%Since 1976
6Routes In Region
16Years

Notable Signals

No notable trend signals for Gadwall in Sierra Nevada. See the full index history below.

Routes In Sierra Nevada

Routes recording Gadwall in Sierra Nevada.
SattleyCALIFORNIA22016
ChilcootCALIFORNIA22024
Last ChanceCALIFORNIA22013
GeneseeCALIFORNIA12006
Hat CreekCALIFORNIA11987
GoumazCALIFORNIA12009

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