BirdAnalyst
Species · BCR 2 · BBS 2025 Release · 1966–2024

Bluethroat In BCR 2

All regionsBCR 2Generalists

Bluethroat in BCR 2 has surged: up 176% on the route-weighted index since 1995.

+176%Since 1995
4Routes In Region
21Years

Notable Signals

long arc increasecomputed index

Bluethroat has surged in BCR 2: up 176% on the route-weighted index since 1995.

Forecast

If the recent trend holds, Bluethroat in BCR 2 is projected to rise about 90% by 2028 — from 0.22 in 2023 to a central estimate of 0.42 (95% range 0.00–1.1). A 5-year backtest shows a typical error of ±27.5%, with 80% of held-out values landing inside the 95% band.

+90%Change by 2028
0.42Projected 2028 index
0.00–1.195% range
±27.5%Backtest error
19932028
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
20240.410.001.1
20250.410.001.1
20260.410.001.1
20270.420.001.1
20280.420.001.1

Routes In BCR 2

Routes recording Bluethroat in BCR 2.
NomeALASKA22023
TellerALASKA22015
CouncilALASKA12018
Salmon LakeALASKA12019

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