What is a compound word for bird hot house?

The compound word for "bird hot house" is "aviary". An aviary is an enclosure, typically made of wire mesh or bars, that is used to keep birds. It can be a stand-alone structure or part of a larger building, such as a zoo or botanical garden. Aviaries can vary in size from small cages that house a few birds to large structures that can accommodate hundreds or even thousands of birds.