Species · North Carolina · BBS 2025 Release · 1966–2024
House Sparrow Population Trend in North Carolina
House Sparrow in North Carolina has collapsed: down 91% on the route-weighted index since 1968.
-91%Since 1968
89Routes In State
58Years
Notable House Sparrow Trends in North Carolina
long arc declinecomputed index
House Sparrow has collapsed in North Carolina: down 91% on the route-weighted index since 1968.
House Sparrow Population Forecast in North Carolina
If the recent trend holds, House Sparrow in North Carolina is projected to fall about 100% by 2029 — from 6.3 in 2024 to a central estimate of 0.00 (95% range 0.00–22). A 5-year backtest shows a typical error of ±362.8%, with 20% of held-out values landing inside the 95% band.
-100%Change by 2029
0.00Projected 2029 index
0.00–2295% range
±362.8%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 0.00 | 0.00 | 22 |
| 2026 | 0.00 | 0.00 | 22 |
| 2027 | 0.00 | 0.00 | 22 |
| 2028 | 0.00 | 0.00 | 22 |
| 2029 | 0.00 | 0.00 | 22 |
House Sparrow Survey Routes in North Carolina
| Beargrass | 218 | 1981 | 1966 |
| Grandy | 157 | 1975 | 1971 |
| Cherryville | 145 | 1968 | 1966 |
| Fairmont | 83 | 1981 | 1968 |
| Shallotte | 79 | 1991 | 1966 |
| Myrtle Grove | 71 | 2024 | 1966 |
| Madison | 38 | 1985 | 1966 |
| Craven Gap | 31 | 1975 | 1969 |
| Genoa | 26 | 2024 | 1990 |
| Jonas Ridge | 22 | 1971 | 1968 |
| Belgrade | 20 | 2019 | 2002 |
| Old Trap | 19 | 2024 | 2010 |
| Dudley | 18 | 2024 | 2002 |
| Congleton | 18 | 2024 | 2001 |
| Mooresville | 16 | 2001 | 1966 |
| Jamesville | 16 | 2024 | 1983 |
| Climax | 15 | 2024 | 1966 |
| Flay | 15 | 2024 | 1990 |
| Rose | 14 | 2024 | 1968 |
| Hertford | 14 | 2024 | 1997 |
| Kinston | 13 | 2024 | 1966 |
| Copeland | 13 | 2024 | 1968 |
| Speed | 12 | 2024 | 1966 |
| Cokesbury | 12 | 2024 | 1996 |
| Rheasville | 12 | 2017 | 2005 |
House Sparrow Population Trend in Other States
alabamaalaskaarizonaarkansascaliforniacoloradoconnecticutdelawarefloridageorgiaidahoillinoisindianaiowakansaskentuckylouisianamainemarylandmassachusettsmichiganminnesotamississippimissourimontananebraskanevadanew-hampshirenew-jerseynew-mexiconew-yorknorth-dakotaohiooklahomaoregonpennsylvaniarhode-islandsouth-carolinasouth-dakotatennesseetexasutahvermontvirginiawashingtonwest-virginiawisconsinwyoming
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.