BirdAnalyst
Species · BCR 36 · BBS 2025 Release · 1966–2024

Great Blue Heron In Tamaulipan Brushlands

All regionsTamaulipan BrushlandsWetland birds

Great Blue Heron in Tamaulipan Brushlands has edged down: down 19% on the route-weighted index since 1972.

-19%Since 1972
21Routes In Region
47Years

Notable Signals

No notable trend signals for Great Blue Heron in Tamaulipan Brushlands. See the full index history below.

Forecast

If the recent trend holds, Great Blue Heron in Tamaulipan Brushlands is projected to fall about 13% by 2029 — from 0.17 in 2024 to a central estimate of 0.15 (95% range 0.00–0.53). A 5-year backtest shows a typical error of ±28.1%, with 100% of held-out values landing inside the 95% band.

-13%Change by 2029
0.15Projected 2029 index
0.00–0.5395% range
±28.1%Backtest error
19692029
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
20250.160.000.54
20260.150.000.53
20270.150.000.53
20280.150.000.53
20290.150.000.53

Routes In Tamaulipan Brushlands

Routes recording Great Blue Heron in Tamaulipan Brushlands.
ZapataTEXAS31982
DilleyTEXAS22023
Millett 2TEXAS22022
RachalTEXAS11972
KingsvilleTEXAS12019
RandadoTEXAS12019
Mirando CityTEXAS12014
EncinalTEXAS12005
San YgnacioTEXAS11972
George WestTEXAS12013
CatarinaTEXAS12006
La PryorTEXAS12017
HondoTEXAS12024
RaymondvilleTEXAS12004
GuerraTEXAS11996
Encinal 2TEXAS12018
ProgresoTEXAS12011
SejitaTEXAS12015
LaredoTEXAS12021
HeidelbergTEXAS12024
Cavasara Cr.TEXAS12010

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