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

Wood Duck In Great Basin

All regionsGreat BasinWaterfowl

Wood Duck in Great Basin has risen sharply: up 70% on the route-weighted index since 1986.

+70%Since 1986
44Routes In Region
40Years

Notable Signals

long arc increasecomputed index

Wood Duck has risen sharply in Great Basin: up 70% on the route-weighted index since 1986.

Forecast

If the recent trend holds, Wood Duck in Great Basin is projected to rise about 114% by 2029 — from 0.10 in 2024 to a central estimate of 0.21 (95% range 0.00–0.48). A 5-year backtest shows a typical error of ±295.5%, with 100% of held-out values landing inside the 95% band.

+114%Change by 2029
0.21Projected 2029 index
0.00–0.4895% range
±295.5%Backtest error
19742029
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
20250.210.000.47
20260.210.000.47
20270.210.000.47
20280.210.000.47
20290.210.000.48

Routes In Great Basin

Routes recording Wood Duck in Great Basin.
Moses LakeWASHINGTON172010
Iron GateCALIFORNIA62019
Pasadena ValIDAHO62010
Modoc PointOREGON62018
Columbia NwrWASHINGTON62015
NubieberCALIFORNIA52018
Fall River MillsCALIFORNIA52007
NighthawkWASHINGTON52024
NixonNEVADA42015
Dell SpringOREGON41984
UmatillaOREGON42023
LeavenworthWASHINGTON41996
PotholesWASHINGTON42013
Scootney ReservoirWASHINGTON42024
DorrisCALIFORNIA32017
Crowder FlatCALIFORNIA32007
Davis CreekCALIFORNIA21999
MacdoelCALIFORNIA22017
HackamoreCALIFORNIA22010
BlyOREGON21995
Bly 2OREGON22009
Catlow RimOREGON22019
ChinchaloOREGON22024
Bear RiverUTAH22007
BrewsterWASHINGTON21995

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