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

Great Blue Heron In Prairie Hardwood Transition

All regionsPrairie Hardwood TransitionWetland birds

Great Blue Heron in Prairie Hardwood Transition has held roughly steady: up 3% on the route-weighted index since 1968.

+3%Since 1968
161Routes In Region
58Years

Notable Signals

No notable trend signals for Great Blue Heron in Prairie Hardwood Transition. See the full index history below.

Forecast

If the recent trend holds, Great Blue Heron in Prairie Hardwood Transition is projected to rise about 20% by 2029 — from 1.3 in 2024 to a central estimate of 1.6 (95% range 0.38–2.9). A 5-year backtest shows a typical error of ±46.8%, with 100% of held-out values landing inside the 95% band.

+20%Change by 2029
1.6Projected 2029 index
0.38–2.995% range
±46.8%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
20251.60.412.9
20261.60.402.9
20271.60.402.9
20281.60.392.9
20291.60.382.9

Routes In Prairie Hardwood Transition

Routes recording Great Blue Heron in Prairie Hardwood Transition.
HatfieldWISCONSIN211998
PackertownINDIANA162004
GraytownOHIO161984
Drayton PlnsMICHIGAN121987
HudsonWISCONSIN102024
Sherburne NrMINNESOTA72024
BismarkOHIO71995
OmroWISCONSIN72001
MottvilleMICHIGAN62024
Brook ParkMINNESOTA62024
Pt WashingtnWISCONSIN62024
Omro 2WISCONSIN62024
Cherry Val 2ILLINOIS52018
North BranchMICHIGAN51998
MiddleburyINDIANA42024
TyreMICHIGAN41995
Bell Oak 2MICHIGAN42023
Chippewa Lk.MICHIGAN42024
PrincetonMINNESOTA42024
N BaltimoreOHIO42018
VeronaWISCONSIN42024
KnoxINDIANA32024
KewannaINDIANA32018
Indiana DuneINDIANA32022
LawrenceMICHIGAN32021

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