How to choose the right bird cage? The complete buying guide for a happy bird

July 17 2026, by Michael van Wassem, 8 min reading time

Size, shape, bar spacing, material and setup: here's what to check before buying a bird cage, so your bird truly feels at home.

A bird cage isn't just a cage: it's the home where your bird spends most of its life. Yet many people choose one mainly based on looks, or on what fits in the living room. That's a shame, because the right cage really does make a difference to how active, calm and healthy a bird is. In this guide, you'll find out exactly what to check before buying a bird cage: from size and shape to bar spacing, material and setup.

Quick answer: always choose the largest cage that's practically feasible, prioritising width over height, with bar spacing suited to your bird's size, made from safe, rust-resistant material, and place it in a calm, draught-free spot at eye level. The rest of this article explains why, and how to put this into practice.

Why the right cage matters so much

Birds are naturally flying animals. Even a caged bird that gets to fly freely every day often still spends a large part of the day in its cage: at night, when no one is home, or simply as a resting spot. A cage that's too small or poorly set up limits natural behaviour such as flying, climbing and flapping the wings. Over the long term, this can lead to boredom, being overweight, feather plucking and other problem behaviour. A spacious, well-thought-out cage is therefore one of the best investments you can make for your bird's welfare.

Cage size: how big should a bird cage be?

There's no legal minimum size for bird cages, but the rule of thumb among bird enthusiasts and vets is clear: bigger is better. In its cage, a bird must at the very least be able to fully spread its wings a few times and flutter or hop a little between perches without constantly bumping into things.

• Small budgerigars and canaries: allow for a cage of at least around 60 x 40 x 40 cm for one bird, and preferably larger for a pair.
• Budgerigars and lovebirds: aim for at least 80 x 50 x 50 cm.
• Larger parrot species (for example cockatiels, small parrots): here an aviary or spacious cage from around 100 cm wide is already the minimum, and many birds need even more space.

💡 Tip: keeping two or more birds together? Then "the cage for one bird plus one extra bird" isn't a good way to calculate it. Social birds each need their own perch, their own bowl, and enough distance to avoid conflict, so allow generous space.

Cage shape: wide is better than tall

Birds fly horizontally, not vertically. A tall, narrow cage often looks elegant in a living room, but gives a bird little room to actually fly. So always choose a cage that's wider and deeper than it is tall. A wide cage with enough perches at varying heights and distances gives a bird the chance to genuinely fly from perch to perch instead of just climbing.

⚠️ Round cages often look decorative, but avian vets generally advise against them: birds use the corners and clear sightlines of a rectangular cage to feel safe, whereas a round shape can instead cause disorientation.

Bar spacing: what size suits your bird?

The distance between the bars is at least as important as the overall size. Bars that are too wide apart are dangerous: a bird can get its head stuck between them or escape. Bars that are too narrow for a larger bird with a powerful beak, on the other hand, waste space and can get damaged more quickly.

• Small budgerigars and canaries: bar spacing of around 1 to 1.2 cm.
• Budgerigars: around 1.2 to 1.5 cm.
• Larger parrot species: depending on size, this can go up to 2 cm or more, with thicker, sturdier bars able to withstand a powerful beak.

Not sure of the right size for your bird species? Ask a pet shop or an avian vet, or check the cage's specifications before ordering.

Material and quality: what to check

Birds gnaw, climb and peck at their surroundings all day long, so the cage needs to hold up well to that. Pay attention to the following points:

• Coating: choose a cage with a smooth, non-toxic powder coating that adheres well. If the paint is damaged or flaking, a bird can ingest harmful particles.
• Metal type: avoid cages with zinc- or lead-containing parts (be especially careful with cheap, unbranded cages or old second-hand ones). Zinc poisoning is a known and avoidable health risk in birds.
• Pull-out tray: a removable bottom tray makes daily cleaning far easier and more hygienic.
• Latches: choose doors with a sturdy, bird-proof latch. Clever parrot species learn surprisingly quickly how to open simple catches.

Cage setup: perches, bowls and floor covering

The cage itself is only the starting point; the setup determines whether your bird genuinely feels comfortable there.

• Perches: use perches of varying thickness and material (for example natural wood alongside plastic), spread across different heights. This exercises the feet and prevents the calluses that can develop from always using the same smooth, uniform perch.
• Food and water bowls: don't place these directly under a perch, so they don't constantly get fouled by droppings.
• Floor covering: use a suitable, bird-safe floor covering that absorbs moisture and odour well and is easy to refresh.
• Toys and variety: don't hang everything up at once. Regularly swap out a few toys, ropes or chew items, so the cage stays interesting without becoming overcrowded.

Where should you put the cage?

The cage's location matters at least as much as the cage itself.

• At eye level or a little higher: this makes a bird feel safer than if the cage sits low near the floor, where it feels more vulnerable.
• Against a wall or in a corner: a cage with at least one closed side gives a bird a sense of shelter.
• Out of draughts and not in harsh direct sunlight: avoid spots right next to a window, door or air conditioning unit, where there can be strong draughts or overheating.
• Away from the kitchen: birds have a very sensitive respiratory system. Cooking fumes, overheated non-stick pans and aerosol sprays can be dangerous for birds.
• Yet still close to family life: birds are social animals and generally do better in a room the family regularly uses than completely isolated in a quiet room.

Common mistakes when choosing a bird cage

• Choosing on looks rather than function: a decorative, round or tower-shaped cage looks appealing, but often offers little real flying space.
• Treating the cage as the final answer: even with a spacious cage, daily free flying time outside the cage, in a bird-safe space, still matters.
• Too few perches, or too many: too few limits movement, too many (or all at the same height) instead limits clear sightlines and the flight path.
• Buying a cage for life without allowing for the group growing: birds sometimes breed faster than expected, or you decide to add another bird.
• Buying second-hand without checking the coating and bars: older cages can contain lead-based paint or rusty parts.

Checklist: buying a bird cage

• ☐ Cage is wider than it is tall, with enough horizontal flying space
• ☐ Bar spacing suits the size of your bird(s)
• ☐ Material is safe: no zinc or lead, intact coating
• ☐ Removable bottom tray for easy cleaning
• ☐ Enough perches of varying thickness and at varying heights
• ☐ Room for food and water bowls, away from perches
• ☐ Bird-safe floor covering in place
• ☐ Suitable, draught-free and not overly sunny spot in the home decided on

Frequently asked questions about bird cages

How big does a bird cage need to be at minimum for a budgerigar?
For a single budgerigar, allow for at least around 60 x 40 x 40 cm, but bigger is always better, especially if the bird can't fly outside the cage for long periods every day.

Should I choose a round or a rectangular cage?
A rectangular cage is preferable. Birds use corners to feel safe, and a rectangular shape makes it easier to position perches in a logical, usable way.

How often do I need to clean the cage?
Refresh the floor covering and clean the bowls daily. Give the whole cage, including bars and perches, a thorough clean at least once a week.

Is a second-hand bird cage a good idea?
It can be, as long as you thoroughly check the coating, bars and latches for damage, rust or lead-based paint, and clean and disinfect the cage properly before your bird moves in.

Should the cage door always be locked?
For clever species such as larger budgerigars and parrots, a sturdy latch is advisable so the bird can't accidentally free itself at an unsafe moment.

Summary and conclusion

Choosing the right bird cage is about more than just taste: size, shape, bar spacing, material, setup and location together determine whether your bird feels at home. Go for a cage that's wider than it is tall, with bar spacing suited to your bird's size, made from safe material, and richly furnished with perches at varying heights. Place the cage in a calm, draught-free spot at eye level, close to family life but away from the kitchen. With this foundation, you're setting your bird up to be active, alert and happy.

When choosing cage accessories, look for sturdy perches in varying thicknesses, practical food and water bowls positioned away from perches, and a bird-safe floor covering that's easy to refresh, so your bird feels at home from day one.

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