BirdAnalyst
Species · BCR 9 · BBS 2025 Release · 1966–2024

Eared Grebe In Great Basin

All regionsGreat BasinWetland birds

Eared Grebe in Great Basin has surged: up 519% on the route-weighted index since 1971.

+519%Since 1971
52Routes In Region
55Years

Notable Signals

long arc increasecomputed index

Eared Grebe has surged in Great Basin: up 519% on the route-weighted index since 1971.

Forecast

If the recent trend holds, Eared Grebe in Great Basin is projected to rise about 65% by 2029 — from 2.4 in 2024 to a central estimate of 4.0 (95% range 0.00–11). A 5-year backtest shows a typical error of ±187.6%, with 100% of held-out values landing inside the 95% band.

+65%Change by 2029
4.0Projected 2029 index
0.00–1195% range
±187.6%Backtest error
19692029
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
20254.00.0011
20264.00.0011
20274.00.0011
20284.00.0011
20294.00.0011

Routes In Great Basin

Routes recording Eared Grebe in Great Basin.
BentonCALIFORNIA1232024
CallaoUTAH892024
Warner VallyOREGON532024
CortezNEVADA512024
DorrisCALIFORNIA502019
Bald Mtn.NEVADA202024
LynnUTAH152021
Dobbin CreekNEVADA142017
Clear Lk ResCALIFORNIA111999
Three ForksOREGON102011
Bear RiverUTAH72011
CedarvilleCALIFORNIA61974
PrestonIDAHO61993
Oak CityUTAH61982
Blackft ResIDAHO51999
MadelineCALIFORNIA42022
Daniels ResIDAHO41991
Modoc PointOREGON42010
Catlow RimOREGON32023
BrewsterWASHINGTON32011
NubieberCALIFORNIA21985
IngallsCALIFORNIA21990
LikelyCALIFORNIA22015
Crowley LakeCALIFORNIA21982
HenryIDAHO21981

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