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

Common Loon In Prairie Hardwood Transition

All regionsPrairie Hardwood TransitionWetland birds

Common Loon in Prairie Hardwood Transition has risen sharply: up 74% on the route-weighted index since 1968.

+74%Since 1968
38Routes In Region
58Years

Notable Signals

long arc increasecomputed index

Common Loon has risen sharply in Prairie Hardwood Transition: up 74% on the route-weighted index since 1968.

Forecast

If the recent trend holds, Common Loon in Prairie Hardwood Transition is projected to rise about 11% by 2029 — from 0.29 in 2024 to a central estimate of 0.33 (95% range 0.14–0.51). A 5-year backtest shows a typical error of ±74.1%, with 60% of held-out values landing inside the 95% band.

+11%Change by 2029
0.33Projected 2029 index
0.14–0.5195% range
±74.1%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
20250.320.130.50
20260.320.130.50
20270.320.140.51
20280.320.140.51
20290.330.140.51

Routes In Prairie Hardwood Transition

Routes recording Common Loon in Prairie Hardwood Transition.
EdwardsMINNESOTA102024
LoraineWISCONSIN52018
RemusMICHIGAN42024
Chippewa Lk.MICHIGAN42024
GlenwoodMINNESOTA32019
WeyerhauserWISCONSIN32024
CadottWISCONSIN32011
Oconto FallsWISCONSIN32023
OsseoMINNESOTA22019
EvergreenMINNESOTA22024
Brook ParkMINNESOTA22024
AshbyMINNESOTA22021
Sherburne NrMINNESOTA22024
HudsonWISCONSIN22024
DresserWISCONSIN22021
HatfieldWISCONSIN21995
MatherWISCONSIN22013
ElderonWISCONSIN22021
ScottvilleMICHIGAN12015
Big Blue LkMICHIGAN12011
Big RapidsMICHIGAN11972
NashvilleMICHIGAN11973
GalesburgMICHIGAN12015
HungerfordMICHIGAN12019
Belding 2MICHIGAN12010

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