Great Horned Owls in New Hampshire
When great horned owls are present in New Hampshire, when they nest, which native New Hampshire plants feed them, and how to host them in a USDA 3b–6a yard.
- Status in New Hampshire
- Year-round resident
- Nesting window
- February–April
- Broods
- 1 per season
- Hardiness zones
- USDA 3b–6a
When to expect great horned owls in New Hampshire
Great Horned Owls live in New Hampshire all year. Long, snowy winters; boreal species visit feeders in irruption years. That makes the cold months the time your yard matters most to them.
Humid continental, with the White Mountains dividing the southern lowlands from northern forest.
Nesting in New Hampshire
Across New Hampshire, great horned owls typically nest from February–April. Plan around that window: January for setup, April for clean-out.
Mild summers; nesting starts late May.
- Great Horned Owls don't use nest boxes. Keep dense native shrubs and trees such as serviceberry, white oak, black cherry for nest sites.
- Delay heavy pruning of shrubs until after April.
Native New Hampshire plants that attract great horned owls
Of the regional native plants we track for New Hampshire, these 8 provide food or cover great horned owls use:
Early-summer berries arrive exactly when nestlings are being fed.
Acorns plus hundreds of caterpillar species for nestling food.
Summer fruit and one of the top caterpillar host trees.
Late-summer berry clusters taken by over 40 bird species.
Blue-black fall fruit and dense nesting cover.
Lipid-rich red fruit fuels fall migrants.
Late nectar for insects and fall seed for sparrows.
Insect-rich in fall and seed in winter.
Feeding great horned owls through the New Hampshire year
- Top foods: None — hunts live prey after dark.
- In New Hampshire's winter: Long, snowy winters; boreal species visit feeders in irruption years.
Full diet breakdown for great horned owls · Best feeder for great horned owls
Frequently asked
Are great horned owls in New Hampshire year-round?
Yes. Great Horned Owls are year-round residents in New Hampshire.
When do great horned owls nest in New Hampshire?
Nesting in New Hampshire typically runs February–April, with 1 per season. Clutches are 1–4 eggs, incubated for 28–37 days.
What native plants attract great horned owls in New Hampshire?
Serviceberry, White oak, Black cherry, American elderberry, Arrowwood viburnum, Spicebush, New England aster, Tall goldenrod are native plants in New Hampshire that provide food or cover for great horned owls.
Great Horned Owls in other regions
Other backyard birds in New Hampshire
Sources
- Great Horned Owl — All About Birds, Cornell Lab of Ornithology
- Great Horned Owl life history — Cornell Lab of Ornithology
- Great Horned Owl — Audubon Guide to North American Birds
- eBird region overview and bar charts — New Hampshire
- USDA Plant Hardiness Zone Map (2023)
- Audubon Native Plants Database
Timing reflects typical patterns for the region as a whole; local dates vary with elevation and year. Check the linked eBird bar charts for your county.