BirdAnalyst
Species · BCR 21 · BBS 2025 Release · 1966–2024

Great Blue Heron In Oaks and Prairies

All regionsOaks and PrairiesWetland birds

Great Blue Heron in Oaks and Prairies has risen sharply: up 53% on the route-weighted index since 1969.

+53%Since 1969
74Routes In Region
57Years

Notable Signals

long arc increasecomputed index

Great Blue Heron has risen sharply in Oaks and Prairies: up 53% on the route-weighted index since 1969.

Forecast

If the recent trend holds, Great Blue Heron in Oaks and Prairies is projected to rise about 84% by 2029 — from 1.0 in 2024 to a central estimate of 1.9 (95% range 0.88–2.9). A 5-year backtest shows a typical error of ±60.2%, with 80% of held-out values landing inside the 95% band.

+84%Change by 2029
1.9Projected 2029 index
0.88–2.995% range
±60.2%Backtest error
19672029
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
20251.90.852.9
20261.90.862.9
20271.90.872.9
20281.90.882.9
20291.90.882.9

Routes In Oaks and Prairies

Routes recording Great Blue Heron in Oaks and Prairies.
HenriettaTEXAS62022
MegargelTEXAS62023
SadlerTEXAS42024
BurtonTEXAS42024
CleburneTEXAS42024
LocoOKLAHOMA31985
ChoctawOKLAHOMA32023
NobleOKLAHOMA32024
DuncanOKLAHOMA32024
GauseTEXAS31997
Massey LakeTEXAS32024
OakwoodTEXAS31995
ThorntonTEXAS31984
GainesvilleTEXAS32024
FanninTEXAS32010
Wills PointTEXAS32023
GreenvilleTEXAS32018
BeggsOKLAHOMA22023
BarnsdallOKLAHOMA21977
HeyburnOKLAHOMA22022
SkiatookOKLAHOMA22019
SchroederTEXAS21996
MuldoonTEXAS22024
Lone OakTEXAS22022
Oak GroveTEXAS21999

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