Species · Alabama · BBS 2025 Release · 1966–2024

House Sparrow Population Trend in Alabama

House Sparrow in Alabama has collapsed: down 95% on the route-weighted index since 1968.

-95%Since 1968
97Routes In State
58Years

Notable House Sparrow Trends in Alabama

long arc declinecomputed index

House Sparrow has collapsed in Alabama: down 95% on the route-weighted index since 1968.

House Sparrow Population Forecast in Alabama

If the recent trend holds, House Sparrow in Alabama is projected to fall about 100% by 2029 — from 2.8 in 2024 to a central estimate of 0.00 (95% range 0.00–17). A 5-year backtest shows a typical error of ±684.5%, with 20% of held-out values landing inside the 95% band.

-100%Change by 2029
0.00Projected 2029 index
0.001795% range
±684.5%Backtest error
19662029
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
20250.000.0017
20260.000.0017
20270.000.0017
20280.000.0017
20290.000.0017

House Sparrow Survey Routes in Alabama

Routes recording House Sparrow in Alabama.
Birmingham19219951969
Summitt5219811966
Foley4719841966
Hillsboro3519961966
Alabama Pt3220031966
Guntersville2720241980
Rock Chapel2720242017
Dawson2519981966
Dearmanville2319831966
Lakeview2120241999
Alabama Pt 22020192004
Carter Grove1120232002
Escatawpa1019891983
Greensport920241966
Vernon920161996
Swaim820241966
Warrior Std720061966
Newton720241966
Calebee720131994
Elberta720211986
Oneonta720231996
Millerville620021966
Grove Hill620231983
Stevenson620241996
Wedgeworth520211979

House Sparrow Population Trend in Other States

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