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

Red-breasted Nuthatch In BCR 2

All regionsBCR 2Forest birds

Red-breasted Nuthatch in BCR 2 has surged: up 85% on the route-weighted index since 1993.

+85%Since 1993
4Routes In Region
25Years

Notable Signals

long arc increasecomputed index

Red-breasted Nuthatch has surged in BCR 2: up 85% on the route-weighted index since 1993.

Forecast

If the recent trend holds, Red-breasted Nuthatch in BCR 2 is projected to rise about 252% by 2029 — from 0.11 in 2024 to a central estimate of 0.39 (95% range 0.00–0.85). A 5-year backtest shows a typical error of ±92.7%, with 80% of held-out values landing inside the 95% band.

+252%Change by 2029
0.39Projected 2029 index
0.00–0.8595% range
±92.7%Backtest error
19852029
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
20250.370.000.83
20260.370.000.84
20270.380.000.84
20280.390.000.85
20290.390.000.85

Routes In BCR 2

Routes recording Red-breasted Nuthatch in BCR 2.
DillinghamALASKA32019
Katmai N.P.ALASKA12000
ChiniakALASKA12023
Kodiak 2ALASKA12024

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