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

American Crow In BCR 4

American Crow in BCR 4 has risen sharply: up 61% on the route-weighted index since 1987.

+61%Since 1987
5Routes In Region
37Years

Notable Signals

long arc increasecomputed index

American Crow has risen sharply in BCR 4: up 61% on the route-weighted index since 1987.

Forecast

If the recent trend holds, American Crow in BCR 4 is projected to fall about 15% by 2029 — from 0.69 in 2024 to a central estimate of 0.59 (95% range 0.00–1.2). A 5-year backtest shows a typical error of ±32.3%, with 100% of held-out values landing inside the 95% band.

-15%Change by 2029
0.59Projected 2029 index
0.001.295% range
±32.3%Backtest error
19822029
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
20250.580.001.2
20260.580.001.2
20270.580.001.2
20280.590.001.2
20290.590.001.2

Routes In BCR 4

Routes recording American Crow in BCR 4.
KachemakALASKA222024
KalifonskyALASKA82022
HomerALASKA41982
Anchor RiverALASKA32024
Seven LakesALASKA11996

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