BirdAnalyst
Species · Utah · BBS 2025 Release · 1966–2024

Eared Grebe Population Trend in Utah

All statesWetland birds

Eared Grebe in Utah has surged: up 193% on the route-weighted index since 1986.

+193%Since 1986
22Routes In State
34Years

Notable Eared Grebe Trends in Utah

long arc increasecomputed index

Eared Grebe has surged in Utah: up 193% on the route-weighted index since 1986.

Eared Grebe Population Forecast in Utah

If the recent trend holds, Eared Grebe in Utah is projected to rise about 69% by 2029 — from 1.8 in 2024 to a central estimate of 3.0 (95% range 0.00–6.4). A 5-year backtest shows a typical error of ±271.1%, with 100% of held-out values landing inside the 95% band.

+69%Change by 2029
3.0Projected 2029 index
0.00–6.495% range
±271.1%Backtest error
19822029
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
20252.70.006.2
20262.80.006.3
20272.90.006.3
20282.90.006.4
20293.00.006.4

Eared Grebe Survey Routes in Utah

Routes recording Eared Grebe in Utah.
Callao8920241995
Neponset Res5020181995
Vernal4020181999
Alton2219981997
Saleratus Cr2020161995
Navajo Lake1720171997
Lynn1520211982
M Warner Res1520241993
Bear River720111996
Oak City619821982
Main Canyon420192012
Goshen220062006
Dixie Nf220191996
Ferron220212021
Promontory120231986
Timpie Spg119831982
Grizzly Rdge119971997
E. Bear Lake120172005
Randolph120222022
Snowville120162016
Gold Hill120192019
Delta120192019

Eared Grebe Population Trend in Other States

arizonacaliforniacoloradoidahoiowakansasminnesotamontananebraskanevadanew-mexiconorth-dakotaoklahomaoregonsouth-dakotatexaswashingtonwyoming

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