BirdAnalyst
Species · Alaska · BBS 2025 Release · 1966–2024

Fox Sparrow Population Trend in Alaska

All statesGeneralists

Fox Sparrow in Alaska has surged: up 82% on the route-weighted index since 1975.

+82%Since 1975
128Routes In State
48Years

Notable Fox Sparrow Trends in Alaska

long arc increasecomputed index

Fox Sparrow has surged in Alaska: up 82% on the route-weighted index since 1975.

Fox Sparrow Population Forecast in Alaska

If the recent trend holds, Fox Sparrow in Alaska is projected to rise about 49% by 2029 — from 16 in 2024 to a central estimate of 24 (95% range 14–35). A 5-year backtest shows a typical error of ±47%, with 80% of held-out values landing inside the 95% band.

+49%Change by 2029
24Projected 2029 index
14–3595% range
±47%Backtest error
19682029
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
2025231334
2026241334
2027241434
2028241434
2029241435

Fox Sparrow Survey Routes in Alaska

Routes recording Fox Sparrow in Alaska.
Chiniak16820241985
Kodiak 214020241985
Kodiak10719841983
Copper River10220111993
Gweek River7820021994
Thompson Pas7520241983
St. Mary'S6820141993
Nome6320231993
Tupuknuk5219951995
Salmon Lake4920241993
Goose Bay4819821975
Anvik River4620241998
Council4420241993
Dillingham3920191993
Kachemak3620241986
Selawik (Short)3619871986
Monahan3520211983
Toklat3420241982
Cohoe3320232012
Anchor River3220241983
Koyukuk Riv.3220011994
Dillingham (Short)3119841984
Mt. Fairplay3120241993
Delta2820241995
Mud River2720241993

Fox Sparrow Population Trend in Other States

californiacoloradoidahomainemontananevadaoregonutahwashingtonwyoming

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