Have you been looking for a spacious house for multiple birds? Polygonous bird aviary, hexagon or octagon, can offer more space to stretch their wings. Compared with common quadrangular aviary, polygonous aviary makes full use of the space to house several pet birds only if the birds can live together peacefully. Hexagonal and octagon aviaries are particularly designed for housing large or x-large birds or several small-medium birds. The spacious house increases their exercise and enhances heart health and muscle health.