BirdAnalyst
Species · BCR 3 · BBS 2025 Release · 1966–2024

Whimbrel In BCR 3

All regionsBCR 3Shorebirds

Whimbrel in BCR 3 has fallen sharply: down 53% on the route-weighted index since 1997.

-53%Since 1997
3Routes In Region
27Years

Notable Signals

long arc declinecomputed index

Whimbrel has fallen sharply in BCR 3: down 53% on the route-weighted index since 1997.

Forecast

If the recent trend holds, Whimbrel in BCR 3 is projected to fall about 100% by 2029 — from 1.5 in 2024 to a central estimate of 0.00 (95% range 0.00–2.5). A 5-year backtest shows a typical error of ±91.9%, with 100% of held-out values landing inside the 95% band.

-100%Change by 2029
0.00Projected 2029 index
0.00–2.595% range
±91.9%Backtest error
19952029
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
20250.330.002.8
20260.230.002.7
20270.130.002.6
20280.030.002.5
20290.000.002.5

Routes In BCR 3

Routes recording Whimbrel in BCR 3.
Red DogALASKA42024
Galbraith L.ALASKA22024
Happy ValleyALASKA12022

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