BirdAnalyst
Species · BCR 12 · BBS 2025 Release · 1966–2024

Green-winged Teal In Boreal Hardwood Transition

All regionsBoreal Hardwood TransitionWaterfowl

Green-winged Teal in Boreal Hardwood Transition has held roughly steady: down 4% on the route-weighted index since 1973.

-4%Since 1973
22Routes In Region
28Years

Notable Signals

No notable trend signals for Green-winged Teal in Boreal Hardwood Transition. See the full index history below.

Forecast

If the recent trend holds, Green-winged Teal in Boreal Hardwood Transition is projected to stay roughly flat through 2026, near 0.03 (95% range 0.00–0.11). A 5-year backtest shows a typical error of ±81.3%, with 100% of held-out values landing inside the 95% band.

n/aChange by 2026
0.03Projected 2026 index
0.00–0.1195% range
±81.3%Backtest error
19692026
Projection of the recent trend (dashed) with 80/95% bands — a projection, not a prediction. Habitat, climate, and land use are not modeled.
YearProjected index95% low95% high
20220.030.000.11
20230.030.000.11
20240.030.000.11
20250.030.000.11
20260.030.000.11

Routes In Boreal Hardwood Transition

Routes recording Green-winged Teal in Boreal Hardwood Transition.
IsabellaMICHIGAN61987
MahtowaMINNESOTA32007
McgregorMINNESOTA32004
GreenbushMINNESOTA32009
ExelandWISCONSIN32019
CromwellMINNESOTA21994
Pine RiverMINNESOTA22019
HovlandMINNESOTA21976
DebsMINNESOTA22014
MinongWISCONSIN22021
Union TwpWISCONSIN22017
GilmanWISCONSIN21994
Washington IWISCONSIN21983
HermanMICHIGAN11997
PickfordMICHIGAN11982
BackusMINNESOTA11980
Hart LakeMINNESOTA12005
Sherry LakeMINNESOTA12006
Crane LakeMINNESOTA12015
BrainerdMINNESOTA12003
Cass LakeMINNESOTA11987
BayfieldWISCONSIN11998

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