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

Western Grebe In Badlands and Prairies

All regionsBadlands and PrairiesWetland birds

Western Grebe in Badlands and Prairies has risen sharply: up 55% on the route-weighted index since 1991.

+55%Since 1991
18Routes In Region
28Years

Notable Signals

long arc increasecomputed index

Western Grebe has risen sharply in Badlands and Prairies: up 55% on the route-weighted index since 1991.

Forecast

If the recent trend holds, Western Grebe in Badlands and Prairies is projected to stay roughly flat through 2029, near 0.09 (95% range 0.00–0.20). A 5-year backtest shows a typical error of ±228.8%, with 100% of held-out values landing inside the 95% band.

n/aChange by 2029
0.09Projected 2029 index
0.00–0.2095% range
±228.8%Backtest error
19882029
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
20250.090.000.20
20260.090.000.20
20270.090.000.20
20280.090.000.20
20290.090.000.20

Routes In Badlands and Prairies

Routes recording Western Grebe in Badlands and Prairies.
DwyerWYOMING92016
CottonwoodSOUTH-DAKOTA62022
S. PioneerSOUTH-DAKOTA42021
DaytonWYOMING32011
ShawmutMONTANA22023
HighwoodMONTANA12008
JordanMONTANA12017
Two DotMONTANA12024
LindsayMONTANA12019
TobaccoNORTH-DAKOTA11996
BowmanNORTH-DAKOTA12019
GorhamNORTH-DAKOTA11997
BentleyNORTH-DAKOTA12011
OwankaSOUTH-DAKOTA12014
HardingSOUTH-DAKOTA12013
Cedar PassSOUTH-DAKOTA12002
LacreekSOUTH-DAKOTA12021
WelchWYOMING12014

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