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

Hooded Merganser In Prairie Hardwood Transition

All regionsPrairie Hardwood TransitionWaterfowl

Hooded Merganser in Prairie Hardwood Transition has increased: up 36% on the route-weighted index since 1968.

+36%Since 1968
56Routes In Region
51Years

Notable Signals

No notable trend signals for Hooded Merganser in Prairie Hardwood Transition. See the full index history below.

Forecast

If the recent trend holds, Hooded Merganser in Prairie Hardwood Transition is projected to rise about 64% by 2029 — from 0.06 in 2024 to a central estimate of 0.10 (95% range 0.02–0.17). A 5-year backtest shows a typical error of ±126.9%, with 80% of held-out values landing inside the 95% band.

+64%Change by 2029
0.10Projected 2029 index
0.02–0.1795% range
±126.9%Backtest error
19662029
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
20250.090.020.17
20260.090.020.17
20270.100.020.17
20280.100.020.17
20290.100.020.17

Routes In Prairie Hardwood Transition

Routes recording Hooded Merganser in Prairie Hardwood Transition.
Indiana DuneINDIANA42012
New BuffaloMICHIGAN31993
ElderonWISCONSIN32023
N FreedomWISCONSIN32010
Fall RiverWISCONSIN31969
Pt WashingtnWISCONSIN31998
Packertown 2INDIANA22023
St CharlesMICHIGAN22010
HungerfordMICHIGAN22022
BismarkOHIO21995
DresserWISCONSIN22024
CascoWISCONSIN22008
Omro 2WISCONSIN22004
Columbia CtyINDIANA11998
FestinaIOWA11986
ScottvilleMICHIGAN12006
Big RapidsMICHIGAN11988
NashvilleMICHIGAN12021
GalesburgMICHIGAN12006
HowardsvilleMICHIGAN12024
MontereyMICHIGAN12003
RemusMICHIGAN12011
FowlervilleMICHIGAN11988
PrattvilleMICHIGAN11969
JuniataMICHIGAN12014

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