BirdAnalyst
Species · BCR 16 · BBS 2025 Release · 1966–2024

Eared Grebe In Southern Rockies / Colorado Plateau

All regionsSouthern Rockies / Colorado PlateauWetland birds

Eared Grebe in Southern Rockies / Colorado Plateau has surged: up 753% on the route-weighted index since 1980.

+753%Since 1980
26Routes In Region
38Years

Notable Signals

long arc increasecomputed index

Eared Grebe has surged in Southern Rockies / Colorado Plateau: up 753% on the route-weighted index since 1980.

Forecast

If the recent trend holds, Eared Grebe in Southern Rockies / Colorado Plateau is projected to rise about 144% by 2029 — from 0.27 in 2024 to a central estimate of 0.66 (95% range 0.07–1.3). A 5-year backtest shows a typical error of ±563.3%, with 60% of held-out values landing inside the 95% band.

+144%Change by 2029
0.66Projected 2029 index
0.07–1.395% range
±563.3%Backtest error
19682029
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
20250.620.031.2
20260.630.041.2
20270.640.051.2
20280.650.061.2
20290.660.071.3

Routes In Southern Rockies / Colorado Plateau

Routes recording Eared Grebe in Southern Rockies / Colorado Plateau.
VernalUTAH402018
AlamosaCOLORADO242023
AltonUTAH221998
BrookhurstWYOMING202022
Navajo LakeUTAH172017
M Warner ResUTAH152024
DinosaurCOLORADO122024
Rio Grnds RsCOLORADO62024
Mcphee Res.COLORADO52019
GuffeyCOLORADO42017
Stinking Lk.NEW-MEXICO41996
Main CanyonUTAH42019
WaldenCOLORADO22016
Willow PeakCOLORADO22009
TarryallCOLORADO22018
CortezCOLORADO21998
DulceNEW-MEXICO22024
Dixie NfUTAH22019
FerronUTAH22021
DoloresCOLORADO11984
FalfaCOLORADO11980
Pagosa SpgsCOLORADO11975
DoylevilleCOLORADO11989
PiedraCOLORADO12012
Cortez 2COLORADO12016

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