the screech owl is a cavity nester.
little brown owl it is a tricky one
A nocturnal bird which is widespread in South Island that nests in holes in trees is the Little Brown Owl. It is widespread throughout the drier northern and Easter coastal farmland areas of the South Island of New Zealand.
oak trees
No. Some birds nest on the ground (curlews), some (woodpeckers) make holes in trees and some lay their eggs in other birds nests (cuckoos).
Many birds make their nests in trees and eat from fruit and insects that are on the trees. The more trees, the more nests can be made and the more food is availiable to the birds.
The larger the bird, the larger its nest.
No, they can fly. The peafowl nests and feeds on the ground, but roosts in low trees.
The Kiwi is a flightless bird, and must stay on the ground.
No. Kiwi are nocturnal.
Bird nests are built mostly in spring or summer.
Woodpeckers nest in holes that they hollow out in dead trees.
Not usually but sometimes. Some birds dig a hollow in the side of trees for nesting. During hurricane Hugo the bird's nests caused weakening and the trees broke.