Avian Construction is a term used to describe the construction of nests by birds. Nests are built by birds using a variety of materials such as twigs, grass, mud, and feathers. The purpose of the NEST is to provide a safe place for the bird to lay its eggs and raise its young. Nests can be found in a variety of places, including trees, shrubs, and even on the ground. The term AVIAN CONSTRUCTION is derived from the Latin word avis, meaning bird.