BirdAnalyst
Species · BCR 37 · BBS 2025 Release · 1966–2024

Blue-winged Teal In Gulf Coastal Prairie

All regionsGulf Coastal PrairieWaterfowl

Blue-winged Teal in Gulf Coastal Prairie has collapsed: down 89% on the route-weighted index since 1971.

-89%Since 1971
24Routes In Region
32Years

Notable Signals

long arc declinecomputed index

Blue-winged Teal has collapsed in Gulf Coastal Prairie: down 89% on the route-weighted index since 1971.

Forecast

If the recent trend holds, Blue-winged Teal in Gulf Coastal Prairie is projected to fall about 100% by 2028 — from 0.48 in 2023 to a central estimate of 0.00 (95% range 0.00–2.3). A 5-year backtest shows a typical error of ±105.7%, with 100% of held-out values landing inside the 95% band.

-100%Change by 2028
0.00Projected 2028 index
0.00–2.395% range
±105.7%Backtest error
19672028
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
20240.050.002.4
20250.030.002.4
20260.000.002.3
20270.000.002.3
20280.000.002.3

Routes In Gulf Coastal Prairie

Routes recording Blue-winged Teal in Gulf Coastal Prairie.
Gran ChenierLOUISIANA1021971
Ltl ChenierLOUISIANA182014
Padre Island PaisTEXAS82015
KatyTEXAS72023
Loyola BeachTEXAS52008
Loyola Beach 2TEXAS52022
MauriceLOUISIANA42023
KaplanLOUISIANA42019
HackberryLOUISIANA31967
Sabine Nwr 2LOUISIANA32014
WinnieTEXAS32019
CreoleLOUISIANA21979
EstherLOUISIANA21994
RichardLOUISIANA22012
Sabine NwrLOUISIANA21989
Forked IslandLOUISIANA22012
Lag AtascosaTEXAS22004
IndianolaTEXAS22004
Moon Lake 2TEXAS22012
Bayside 3TEXAS22016
Goliad PrairieTEXAS22012
Ville PlatteLOUISIANA12007
StowellTEXAS11992
DanburyTEXAS11995

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