What term describes the Elf Owl's role regarding cavity creation for nesting?

Answer

Secondary cavity nester

The Elf Owl is a secondary cavity nester, meaning it must wait for birds like Gilded Flickers or Gila Woodpeckers to excavate the holes first.

What term describes the Elf Owl's role regarding cavity creation for nesting?
birdanimalwildlifecharacteristicowl