A bird cage is a container designed to house birds in captivity. It is typically made of metal wires or bars that form a mesh-like structure to allow air circulation and visibility while preventing the birds from escaping. Bird cages come in a variety of sizes and styles, depending on the type and number of birds being housed. Some cages are designed for small birds such as finches or canaries, while others are intended for larger birds such as parrots or cockatiels.

Bird cages often include features such as perches, food and water dishes, and removable trays for easy cleaning. Some cages also come with accessories such as toys or mirrors to provide entertainment for the birds. It is important to provide a suitable size and environment for the bird, with enough space for them to move around, fly, and perch comfortably. Bird cages should also be cleaned regularly to maintain a hygienic living space for the birds.

Birds are often kept in cages as pets or for breeding purposes. However, it is important to ensure that the birds are given proper care, including sufficient food, water, and exercise, as well as socialization and mental stimulation.