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

Common Yellowthroat In BCR 4

All regionsBCR 4Forest birds

Common Yellowthroat in BCR 4 has surged: up 171% on the route-weighted index since 1999.

+171%Since 1999
8Routes In Region
20Years

Notable Signals

long arc increasecomputed index

Common Yellowthroat has surged in BCR 4: up 171% on the route-weighted index since 1999.

Forecast

If the recent trend holds, Common Yellowthroat in BCR 4 is projected to rise about 72% by 2029 — from 0.08 in 2024 to a central estimate of 0.14 (95% range 0.05–0.24). A 5-year backtest shows a typical error of ±106.9%, with 60% of held-out values landing inside the 95% band.

+72%Change by 2029
0.14Projected 2029 index
0.05–0.2495% range
±106.9%Backtest error
19932029
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
20250.130.040.22
20260.130.040.23
20270.140.040.23
20280.140.050.23
20290.140.050.24

Routes In BCR 4

Routes recording Common Yellowthroat in BCR 4.
Mt. FairplayALASKA22017
EagleALASKA12024
SlanaALASKA12024
Tower BluffsALASKA12015
ChistochinaALASKA11993
NorthwayALASKA12023
CantwellALASKA12017
ChickenALASKA12024

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