BirdAnalyst
Species · BCR 23 · BBS 2025 Release · 1966–2024

Lesser Scaup In Prairie Hardwood Transition

All regionsPrairie Hardwood TransitionWaterfowl

Lesser Scaup in Prairie Hardwood Transition has collapsed: down 76% on the route-weighted index since 1968.

-76%Since 1968
8Routes In Region
12Years

Notable Signals

long arc declinecomputed index

Lesser Scaup has collapsed in Prairie Hardwood Transition: down 76% on the route-weighted index since 1968.

Routes In Prairie Hardwood Transition

Routes recording Lesser Scaup in Prairie Hardwood Transition.
OsseoMINNESOTA41967
Sherburne NrMINNESOTA31997
KnappMINNESOTA22003
GlenwoodMINNESOTA22019
HudsonWISCONSIN11975
DresserWISCONSIN11992
LoraineWISCONSIN11980
OmroWISCONSIN11986

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