Aviary mesh is extensively used in Bird Park for providing large enough places for exotic or extinctive birds like macaws, African greys, finches and cockatoos. Its varying mesh openings and wire gauges provide different aviaries for different birds. Three types of aviary wire mesh are provided according to the sizes of opening - small, medium and large. For example, small birds including finches, canary, small parakeets and parrots should be enclosure by welded wire mesh with small opening.