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

Eared Grebe In Badlands and Prairies

Eared Grebe in Badlands and Prairies has surged: up 135% on the route-weighted index since 1971.

+135%Since 1971
35Routes In Region
51Years

Notable Signals

long arc increasecomputed index

Eared Grebe has surged in Badlands and Prairies: up 135% on the route-weighted index since 1971.

Forecast

If the recent trend holds, Eared Grebe in Badlands and Prairies is projected to fall about 27% by 2029 — from 1.1 in 2024 to a central estimate of 0.81 (95% range 0.00–2.3). A 5-year backtest shows a typical error of ±48.3%, with 80% of held-out values landing inside the 95% band.

-27%Change by 2029
0.81Projected 2029 index
0.002.395% range
±48.3%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
20250.790.002.3
20260.800.002.3
20270.800.002.3
20280.810.002.3
20290.810.002.3

Routes In Badlands and Prairies

Routes recording Eared Grebe in Badlands and Prairies.
CottonwoodSOUTH-DAKOTA272024
Two DotMONTANA192024
HighwoodMONTANA182013
Wheat BasinMONTANA142024
S. PioneerSOUTH-DAKOTA142024
SavageMONTANA81987
IngomarMONTANA32023
Dinosaurs H.M.MONTANA32021
HardingSOUTH-DAKOTA31986
WelchWYOMING31995
RoyMONTANA22008
BrusettMONTANA21989
ShawmutMONTANA22024
Dunn CenterNORTH-DAKOTA21997
BowmanNORTH-DAKOTA22018
BentleyNORTH-DAKOTA22013
ArdmoreSOUTH-DAKOTA21994
PioneerSOUTH-DAKOTA21993
KayceeWYOMING22024
Seely 2WYOMING22007
BucknumWYOMING22001
JordanMONTANA12017
CircleMONTANA11993
FlatwillowMONTANA11978
PowdervilleMONTANA11997

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