Great Horned Owl

Great Horned Owl

Construction Difficulty

kid-friendly difficulty kid-friendly simple difficulty simple

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Nesting Range

Great Horned Owl Range
Source: Birds of the World

Nesting Habitat

  •  icon Forest
  •  icon Open Woodland

Attach Nest Box To

  • Live tree icon Live tree

Known Nesting Period

Not Nesting
Some Nesting Occurrence
Nesting in Most of Range
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
OCT
NOV
DEC
Source: Birds of the World

Nest Box Placement

Height Range From Ground

15ft
45ft
15–45 feet

Spacing Between Nest Boxes

1.5 mile

Facing

Entrance hole facing visualization
Not applicable

Helpful Tips

  • Place nest cones in trees in the fall so they can be located by owls by the following January.
  • Place the nest in a live hardwood tree that is at least 12 inches in diameter.
  • Placing nest cones in orchards or on farm woodlots can help control rodent populations.
  • Construction tips: Use a plant stand with a 12 inch opening to hold the cone during construction. Build a raft-like base at the bottom of the nest cone and secure the base to the sides of the cone with landscaping wire. Create vertical stick spokes (visualize a bike wheel) to use for attaching horizontal sticks. Work your way from the bottom to the top, securing sticks in 6 inch segments with landscaping wire. Add loops to the outside of the cone to aid in installation. Have an arborist install the cone! When Great Horned Owls select a tree as their nest site, they prefer to nest at a height of 15-45 feet; in hardwood trees with at least a 12 inch diameter.