What is the minimum cage size for my bird?
Choose your bird's species to see the minimum recommended cage width, depth, and height, plus the maximum safe spacing between bars to prevent escapes or accidents.
Minimum cage for Cockatiel
60 × 60 × 75 cm
Width × depth × height · approximate minimum volume: 270 L · maximum bar spacing: 16 mm
How the calculation works
Minimum cage dimensions vary from species to species because they depend on body size, wingspan in flight, and each bird's natural behavior — budgies and cockatiels need horizontal space for short flights, while larger macaws and parrots need cages tall enough to accommodate their tail and climbing movements.
Bar spacing is defined by the width of the bird's head: if it's too wide, the bird can get its head stuck between the bars (risk of injury or suffocation) or even escape the cage; if it's too narrow for the bird's size, it needlessly makes cleaning and ventilation harder.
The values in this calculator follow recommendations from avian rescue and welfare organizations (such as STAR-St. Louis Avian Rescue and CFARE) and from Brazilian aviculture references, and represent the minimum acceptable space for a single adult bird — not the ideal size.
Whenever possible, choose the largest cage your budget and home allow, along with perches of varying diameters and toys for environmental enrichment, plus daily time outside the cage in a safe environment.
Minimum cage dimensions and bar spacing by species
| Species | Width × Depth × Height (min.) | Max. bar spacing |
|---|---|---|
| Canary | 60 × 30 × 40 cm | 10 mm |
| Budgerigar (budgie) | 60 × 40 × 50 cm | 12 mm |
| Lovebird | 60 × 45 × 60 cm | 12 mm |
| Cockatiel | 60 × 60 × 75 cm | 16 mm |
| Indian ringneck parakeet | 60 × 45 × 90 cm | 16 mm |
| Conure | 75 × 60 × 90 cm | 19 mm |
| Parrot (medium-sized) | 90 × 60 × 90 cm | 25 mm |
| Macaw (large-sized) | 120 × 90 × 150 cm | 38 mm |
Frequently asked questions
Is a bigger cage always better?
Yes. The values in this calculator are the absolute minimum recommended for a single bird — never the ideal. Whenever space and budget allow, choose the largest cage possible: more area to fly, play, and exercise reduces stress, frustration, and behavioral problems such as feather plucking.
Even with a large cage, does my bird still need time outside it?
Yes, always. No cage, no matter how large, replaces daily free-flight time and interaction outside the cage in a safe environment (no open windows, pots on the stove, or other pets nearby). Avian veterinarians generally recommend at least 1 to 3 hours a day out of the cage, depending on the species.
Why does bar spacing matter as much as cage size?
If the spacing between bars is wider than the bird's head, it can get its head or body stuck between the bars (which can cause fractures or suffocation) or even escape the cage. Smaller species, such as budgies and canaries, need bars closer together than macaws and large parrots.
Do width and depth matter more than height?
For most pet birds, yes. Birds fly mainly horizontally, so a wide, long cage allows more wingbeats and movement than a tall, narrow one. Prioritize generous width and depth before compensating with height.
Do these sizes work for pairs or groups of birds in the same cage?
No. The dimensions in this calculator are the minimum for a single adult bird. For breeding pairs or groups, the recommended minimum space is much larger (generally double the floor area per additional bird), plus extra perches, feeders, and nests to avoid territorial disputes.
Important notice
This calculator is for educational purposes and does not replace a veterinary evaluation. When in doubt, consult a veterinarian.