During the winter months, the owls may store food in tree cavities.

Nests are often built in tree cavities, where they are sometimes placed close together.

The hen lays two or three white eggs in a tree cavity.

They live in tree cavities and old nests made by other small raptors.

They usually nest in a tree cavity and will often use old woodpecker holes.

Higher elevation forests lack tree cavities, so few, if any, nests could be made.

The white eggs are laid in a high unlined tree cavity.

They make a cup nest in a tree cavity or old woodpecker hole.

They nest in tree cavities, usually being old woodpecker holes.

They prefer to live in tree cavities or old woodpeckers' holes.