Bird Cages & Stands: Size, Bar Spacing and Placement

Minimum Sizes and Bar Spacing

The Merck Veterinary Manual gives these as minimums. Bigger is better, and birds still need daily time out of the cage.

Canaries and finches aren't in that table; keepers generally use spacing of 0.5 inch (1.3 cm) or narrower, with the narrowest for small finches. The RSPCA adds a simple rule: a cage at least twice the bird's wingspan in every direction if it spends most of its time inside, and a little extra for each bird beyond two. Check details with your avian vet or a specialist keeper.

Why Spacing Comes First

A cage can be roomy in every direction and still be unsafe if the gaps were made for a bigger bird. A small bird's head or wing can slip through and get trapped as it struggles to pull back. Gaps that are too narrow for a big parrot cause problems too, and thin bars won't stand up to a strong beak. Check the cage's listed spacing against your species before comparing anything else.

Flight Cages and Width

Birds fly sideways, not straight up, so width and depth matter more than height. A tall, narrow cage can look impressive and leave little room to move. A wide "flight cage" lets a bird flap and hop between perches.

Many pet-store starter cages are close to bare minimum. Compare several cages for the same species and pick the largest that fits your space. Swap some plastic perches for natural branches of different widths.

Placement

• Back to a solid wall, so the bird feels secure, as the RSPCA advises.
• Away from radiators, fires, stoves and drafts, including drafty windows and doors.
• Out of the kitchen: cooking fumes, overheated non-stick pans and aerosols harm birds' sensitive lungs.
• Some natural light, but never direct sun without shade.
• In a room where people spend time, because birds are social.

See household dangers for birds for more.

Covers, Carriers and Aviaries

A cover over part of the cage at night helps some birds settle, though not every bird needs one. A small outdoor aviary can add fresh air and daylight, but it must have shelter, shade, a safety porch and protection from cats and birds of prey, and wild birds must be kept out because they can carry diseases such as bird flu. Supervise outdoor time until you know the setup is secure.