BirdAnalyst
Species · BCR 17 · BBS 2025 Release · 1966–2024

Blue-winged Teal In Badlands and Prairies

All regionsBadlands and PrairiesWaterfowl

Blue-winged Teal in Badlands and Prairies has fallen sharply: down 56% on the route-weighted index since 1969.

-56%Since 1969
99Routes In Region
57Years

Notable Signals

long arc declinecomputed index

Blue-winged Teal has fallen sharply in Badlands and Prairies: down 55% on the route-weighted index since 1969.

Forecast

If the recent trend holds, Blue-winged Teal in Badlands and Prairies is projected to fall about 37% by 2029 — from 1.6 in 2024 to a central estimate of 1.0 (95% range 0.00–2.2). A 5-year backtest shows a typical error of ±25.2%, with 100% of held-out values landing inside the 95% band.

-37%Change by 2029
1.0Projected 2029 index
0.00–2.295% range
±25.2%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
20251.10.002.3
20261.10.002.2
20271.10.002.2
20281.00.002.2
20291.00.002.2

Routes In Badlands and Prairies

Routes recording Blue-winged Teal in Badlands and Prairies.
CottonwoodSOUTH-DAKOTA212024
BowmanNORTH-DAKOTA172024
Eagle ButteSOUTH-DAKOTA132015
PromiseSOUTH-DAKOTA122015
RevaSOUTH-DAKOTA102019
IndianSOUTH-DAKOTA92024
SchoonoverWYOMING91986
WebsterMONTANA72024
NatronaWYOMING71992
BillWYOMING71998
JordanMONTANA62024
LocateMONTANA62024
LodgepoleSOUTH-DAKOTA62022
LarkNORTH-DAKOTA51982
GorhamNORTH-DAKOTA52018
CarsonNORTH-DAKOTA52024
NewcastleWYOMING52000
Caballa CrkWYOMING52011
CircleMONTANA42023
IngomarMONTANA42004
Dinosaurs H.M.MONTANA42024
BentleyNORTH-DAKOTA42024
ChamberlainSOUTH-DAKOTA42011
Cedar PassSOUTH-DAKOTA42021
PioneerSOUTH-DAKOTA42024

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