BirdAnalyst
Species · BCR 4 · BBS 2025 Release · 1966–2024

White-winged Scoter In BCR 4

All regionsBCR 4Waterfowl

White-winged Scoter in BCR 4 has edged down: down 22% on the route-weighted index since 1989.

-22%Since 1989
11Routes In Region
26Years

Notable Signals

No notable trend signals for White-winged Scoter in BCR 4. See the full index history below.

Forecast

If the recent trend holds, White-winged Scoter in BCR 4 is projected to fall about 55% by 2028 — from 0.16 in 2023 to a central estimate of 0.07 (95% range 0.00–0.53). A 5-year backtest shows a typical error of ±257.7%, with 40% of held-out values landing inside the 95% band.

-55%Change by 2028
0.07Projected 2028 index
0.00–0.5395% range
±257.7%Backtest error
19832028
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
20240.090.000.55
20250.090.000.55
20260.080.000.54
20270.080.000.54
20280.070.000.53

Routes In BCR 4

Routes recording White-winged Scoter in BCR 4.
TonsinaALASKA222018
Hather CreekALASKA61994
Mccarthy Rd2ALASKA62023
CantwellALASKA32010
MonahanALASKA22003
Lake LouiseALASKA21993
NorthwayALASKA11994
Kenny LakeALASKA11989
ColdfootALASKA12002
Mud RiverALASKA11993
Kanuti LakeALASKA12012

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