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

Pied-billed Grebe In Southern Rockies / Colorado Plateau

All regionsSouthern Rockies / Colorado PlateauWetland birds

Pied-billed Grebe in Southern Rockies / Colorado Plateau has held roughly steady: up 2% on the route-weighted index since 1972.

+2%Since 1972
35Routes In Region
46Years

Notable Signals

No notable trend signals for Pied-billed Grebe in Southern Rockies / Colorado Plateau. See the full index history below.

Forecast

If the recent trend holds, Pied-billed Grebe in Southern Rockies / Colorado Plateau is projected to stay roughly flat through 2029, near 0.08 (95% range 0.00–0.16). A 5-year backtest shows a typical error of ±89.9%, with 100% of held-out values landing inside the 95% band.

n/aChange by 2029
0.08Projected 2029 index
0.00–0.1695% range
±89.9%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
20250.080.000.16
20260.080.000.16
20270.080.000.16
20280.080.000.16
20290.080.000.16

Routes In Southern Rockies / Colorado Plateau

Routes recording Pied-billed Grebe in Southern Rockies / Colorado Plateau.
CortezCOLORADO102008
Stinking Lk.NEW-MEXICO81996
M Warner ResUTAH62018
DulceNEW-MEXICO52019
BrookhurstWYOMING32019
WaldenCOLORADO22022
Rio Grnds RsCOLORADO22016
Steamboat L.COLORADO22002
Baxter PassCOLORADO22016
Cortez 2COLORADO22017
Main CanyonUTAH22017
Dixie NfUTAH22014
Douglas PassCOLORADO12022
DoloresCOLORADO11985
FalfaCOLORADO11997
Pagosa SpgsCOLORADO11976
DoylevilleCOLORADO12006
AlamosaCOLORADO12024
San LuisCOLORADO12024
Groundhog RsCOLORADO12018
PiedraCOLORADO12024
DinosaurCOLORADO12017
BasinCOLORADO12009
Mcphee Res.COLORADO12024
Yellowjacket PassCOLORADO12023

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