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

Pied-billed Grebe In Great Basin

All regionsGreat BasinWetland birds

Pied-billed Grebe in Great Basin has held roughly steady: down 5% on the route-weighted index since 1970.

-5%Since 1970
87Routes In Region
56Years

Notable Signals

No notable trend signals for Pied-billed Grebe in Great Basin. See the full index history below.

Forecast

If the recent trend holds, Pied-billed Grebe in Great Basin is projected to rise about 167% by 2029 — from 0.09 in 2024 to a central estimate of 0.25 (95% range 0.03–0.47). A 5-year backtest shows a typical error of ±180.7%, with 80% of held-out values landing inside the 95% band.

+167%Change by 2029
0.25Projected 2029 index
0.03–0.4795% range
±180.7%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
20250.250.030.47
20260.250.030.47
20270.250.030.47
20280.250.030.47
20290.250.030.47

Routes In Great Basin

Routes recording Pied-billed Grebe in Great Basin.
Crowder FlatCALIFORNIA122018
BrewsterWASHINGTON62018
IngallsCALIFORNIA51994
DorrisCALIFORNIA52019
Barnes ValOREGON51987
Catlow RimOREGON42024
EwanWASHINGTON42019
OthelloWASHINGTON41991
Lone RockOREGON32015
Warner VallyOREGON32024
Iron GateCALIFORNIA22019
TriangleIDAHO22021
Blackft ResIDAHO21998
Cedar HillIDAHO22016
Daniels ResIDAHO22000
CortezNEVADA22023
Dobbin CreekNEVADA22018
Blizzard GapOREGON22023
MerrillOREGON22013
GoshenUTAH22006
LynnUTAH22013
WapatoWASHINGTON21994
TonasketWASHINGTON22016
KeystoneWASHINGTON22015
Moses CouleeWASHINGTON22023

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