Species · New Hampshire · BBS 2025 Release · 1966–2024
Great Horned Owl Population Trend in New Hampshire
Great Horned Owl in New Hampshire has held roughly steady: down 9% on the route-weighted index since 1979.
-9%Since 1979
9Routes In State
13Years
Notable Great Horned Owl Trends in New Hampshire
No notable trend signals for Great Horned Owl in New Hampshire. See the full index history below.
Great Horned Owl Survey Routes in New Hampshire
| Clarksville | 2 | 2006 | 2006 |
| Fitzwilliam | 1 | 1985 | 1978 |
| Dover | 1 | 1993 | 1993 |
| Hopkinton | 1 | 1978 | 1978 |
| Epsom | 1 | 2022 | 2004 |
| Marlow | 1 | 1979 | 1979 |
| Lempster | 1 | 1991 | 1991 |
| Franconia | 1 | 1969 | 1969 |
| Dixvil Notch | 1 | 2009 | 2009 |
Great Horned Owl Population Trend in Other States
alabamaalaskaarizonaarkansascaliforniacoloradoconnecticutdelawarefloridageorgiaidahoillinoisindianaiowakansaskentuckylouisianamainemarylandmassachusettsmichiganminnesotamississippimissourimontananebraskanevadanew-jerseynew-mexiconew-yorknorth-carolinanorth-dakotaohiooklahomaoregonpennsylvaniarhode-islandsouth-carolinasouth-dakotatennesseetexasutahvermontvirginiawashingtonwest-virginiawisconsinwyoming
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.