man-made enclosure for animals to nest in
Eastern bluebird at the entrance of a nest box
A nest box, also spelled nestbox, is a man-made enclosure provided for animals to nest in. Nest boxes are most frequently utilized for birds, in which case they are also called birdhouses or a birdbox/bird box, but some mammals such as bats may also use them. Placing nestboxes or roosting boxes may also be used to help maintain populations of particular species in an area.
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).