Best Indoor Aviaries (2026): Walk-In, Double and Corner Cages a Bird Can Fly In
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An indoor aviary is a cage a bird can fly in rather than hop across, and the veterinary case for one is plain: the Merck Veterinary Manual links small cages and little exercise to physical and psychological problems, and RSPCA Australia says most cages are too small for flight and birds need a flight aviary or regular flight time. The A&E walk-in aviary (86 by 62 by 79 inches, 1-inch spacing, 5 mm bars) is the real thing for medium and large parrots, at about $2,740; the Seny double cage (64 by 32 by 73, divider out) is the under-$900 flight for a grey or Amazon; the Flyline corner aviary and XXL flight put height into a corner or a footprint; the A&E double flight cage (64 by 21 by 65, 1/2-inch) is the small-bird aviary; and the PawHut wooden aviary is the $190 furniture-style cage whose wood VCA warns about.
Each pick shows its size against the Merck and VCA rows for the birds it suits, its bar spacing, and whether the listing states the wire. Floor space and a door you can reach every corner through are the two things an aviary needs that a cage does not.
Our top picks at a glance
1. Best overall
A&E Walk-In Aviary WI8662 (86 x 62 x 79 in, 1 in spacing, 5 mm bars)Size: 86 x 62 x 79 in; 79 in interior height (per the Amazon listing) · Bar spacing: 1 in; 5 mm bars (per the Amazon listing) · Birds (by the tables): Greys, Amazons, cockatoos, macaws (clears Merck 48 x 36 x 66); not small birds at 1 in
2. Best under $900
Seny Double Wrought Iron Bird Cage with Divider (64 x 32 x 73 in, 1 in spacing)Size: 64 x 32 x 73 in without seed skirt (per the Amazon listing) · Bar spacing: 1 in (per the Amazon listing) · Birds (by the tables): Greys, Amazons, large conures by the finger test; clears Merck's 40 x 30 x 60 with the divider out
3. Best corner aviary
Flyline Corner Bird Cage, extra large (51.2 x 51.2 x 73 in, 3/4 in spacing)Size: 51.2 x 51.2 x 73 in overall with seed skirt; interior not stated (per the Amazon listing) · Bar spacing: 3/4 in; 1/8 in bars (per the Amazon listing) · Birds (by the tables): Conures, caiques, greys, Amazons (Merck 0.75 in row)
4. Best tall aviary on a 3-foot footprint
Flyline XXL Flight Cage (35.5 x 35.5 x 80 in, 1 in spacing)Size: 35.5 x 35.5 x 80 in overall (per the Amazon listing) · Bar spacing: 1 in (per the Amazon listing) · Birds (by the tables): Greys, Amazons, small macaws; height over every row, length under Merck's 40 for greys
5. Best small-bird aviary
A&E Double Flight Cage 6421 with Divider (64 x 21 x 65 in, 12.7 mm spacing)Size: 64 x 21 x 65 in overall (per the Amazon listing) · Bar spacing: 1/2 in (12.7 mm per the Amazon listing) · Birds (by the tables): Budgies, lovebirds, parrotlets, cockatiels, canaries, finches (Merck 0.5 in row)
6. Best budget aviary (with a warning)
PawHut Wooden Bird Aviary with Asphalt Roof (50 x 28.75 x 64.5 in)Size: 50 x 28.75 x 64.5 in overall (per the Amazon listing) · Bar spacing: Not stated (per the Amazon listing) · Birds (by the tables): Finches, canaries, budgies by the seller; spacing unknown, so measure before any bird goes in
| Pick | Size | Bar spacing | Birds (by the tables) | Buy |
|---|---|---|---|---|
| A&E Walk-In Aviary WI8662 (86 x 62 x 79 in, 1 in spacing, 5 mm bars)Best overall | 86 x 62 x 79 in; 79 in interior height (per the Amazon listing) | 1 in; 5 mm bars (per the Amazon listing) | Greys, Amazons, cockatoos, macaws (clears Merck 48 x 36 x 66); not small birds at 1 in | Amazon |
| Seny Double Wrought Iron Bird Cage with Divider (64 x 32 x 73 in, 1 in spacing)Best under $900 | 64 x 32 x 73 in without seed skirt (per the Amazon listing) | 1 in (per the Amazon listing) | Greys, Amazons, large conures by the finger test; clears Merck's 40 x 30 x 60 with the divider out | Amazon |
| Flyline Corner Bird Cage, extra large (51.2 x 51.2 x 73 in, 3/4 in spacing)Best corner aviary | 51.2 x 51.2 x 73 in overall with seed skirt; interior not stated (per the Amazon listing) | 3/4 in; 1/8 in bars (per the Amazon listing) | Conures, caiques, greys, Amazons (Merck 0.75 in row) | Amazon |
| Flyline XXL Flight Cage (35.5 x 35.5 x 80 in, 1 in spacing)Best tall aviary on a 3-foot footprint | 35.5 x 35.5 x 80 in overall (per the Amazon listing) | 1 in (per the Amazon listing) | Greys, Amazons, small macaws; height over every row, length under Merck's 40 for greys | Amazon |
| A&E Double Flight Cage 6421 with Divider (64 x 21 x 65 in, 12.7 mm spacing)Best small-bird aviary | 64 x 21 x 65 in overall (per the Amazon listing) | 1/2 in (12.7 mm per the Amazon listing) | Budgies, lovebirds, parrotlets, cockatiels, canaries, finches (Merck 0.5 in row) | Amazon |
| PawHut Wooden Bird Aviary with Asphalt Roof (50 x 28.75 x 64.5 in)Best budget aviary (with a warning) | 50 x 28.75 x 64.5 in overall (per the Amazon listing) | Not stated (per the Amazon listing) | Finches, canaries, budgies by the seller; spacing unknown, so measure before any bird goes in | Amazon |
Best overall
A&E Walk-In Aviary WI8662 (86 x 62 x 79 in, 1 in spacing, 5 mm bars)
A&E's 86 by 62 by 79 inch walk-in with a 69 by 25 inch key-locked door, 5 mm bars at 1-inch spacing and three swing-out stainless feeders: the only cage here that clears every Merck row.
- Size
- 86 x 62 x 79 in; 79 in interior height (per the Amazon listing)
- Bar spacing
- 1 in; 5 mm bars (per the Amazon listing)
- Birds (by the tables)
- Greys, Amazons, cockatoos, macaws (clears Merck 48 x 36 x 66); not small birds at 1 in
- Overall
- 86 x 62 x 79 in; 340 lb; base sold separately (per the Amazon listing)
Pros
- Walk in to clean and interact
- A macaw can fly a few beats
- Key lock
Cons
- $2,740 and 340 lb
- Indoor only per retailers; the base with trays and grates is a separate purchase
- A&E publishes no product page we could find
A&E's WI8662 is listed at 86 by 62 by 79 inches with a 79-inch interior height, 1-inch spacing, 5 mm bars, a 69 by 25 inch front door with a key lock, three swing-out feeder doors with stainless bowls, powder-coated metal, 340 pounds; retailer listings add that the matching base attaches to the frame and that it is not for outdoor use. It is a room within a room, and the macaw guide treats it as the one cage that meets the macaw row.
Best under $900
Seny Double Wrought Iron Bird Cage with Divider (64 x 32 x 73 in, 1 in spacing)
64 by 32 by 73 inches with the divider out: a flight for one grey or Amazon, or two cages for two, at 1-inch spacing, $830.
- Size
- 64 x 32 x 73 in without seed skirt (per the Amazon listing)
- Bar spacing
- 1 in (per the Amazon listing)
- Birds (by the tables)
- Greys, Amazons, large conures by the finger test; clears Merck's 40 x 30 x 60 with the divider out
- Overall
- 64 x 32 x 73 in; 198 lb (per the Amazon listing)
Pros
- 64 inches of flight
- Divider for two
- Removable trays and grates
Cons
- 32 in deep
- Gauge not stated
- Unbranded
Seny's double cage is listed at 64 by 32 by 73 inches, 1-inch spacing, a slide-out divider, removable trays and grates and large front doors. It is the longest cage under $900 we found and the cheapest that clears Merck's grey and Amazon row; the grey guide compares it with the stainless options.
Best corner aviary
Flyline Corner Bird Cage, extra large (51.2 x 51.2 x 73 in, 3/4 in spacing)
73 inches tall and 51 inches along each wall with the skirt, 3/4-inch spacing, 1/8-inch bars, four feeder gates and an opening top, $760.
- Size
- 51.2 x 51.2 x 73 in overall with seed skirt; interior not stated (per the Amazon listing)
- Bar spacing
- 3/4 in; 1/8 in bars (per the Amazon listing)
- Birds (by the tables)
- Conures, caiques, greys, Amazons (Merck 0.75 in row)
- Overall
- 51.2 x 51.2 x 73 in; 150 lb (per the Amazon listing)
Pros
- Uses a corner
- Bars stated
- Four feeding stations
Cons
- Triangular floor
- No interior figure
- 150 lb
Flyline's Parrot Escape Jumbo Corner (X-Large) is listed at 73 inches tall and 51.2 on each wall side including the seed skirt, 3/4-inch spacing, 1/8-inch bars, two perches, four swing feeder gates with bowls, a large door, slide-out trays and an opening top. The small version (37.5 by 37.5 by 63.5, 5/8-inch, $300) is the conure-sized corner.
Best tall aviary on a 3-foot footprint
Flyline XXL Flight Cage (35.5 x 35.5 x 80 in, 1 in spacing)
80 inches tall on 35.5 by 35.5 inches with 1-inch bars and a 17 by 37 inch door, $661.
- Size
- 35.5 x 35.5 x 80 in overall (per the Amazon listing)
- Bar spacing
- 1 in (per the Amazon listing)
- Birds (by the tables)
- Greys, Amazons, small macaws; height over every row, length under Merck's 40 for greys
- Overall
- 35.5 x 35.5 x 80 in (per the Amazon listing)
Pros
- 80 inches of height
- Big door
- Four swing-out cups
Cons
- Height is not flight for most birds
- Gauge not stated
- 14 left when read
Flyline's XXL flight cage is listed at 80 by 35.5 by 35.5 inches with 1-inch spacing, a 17 by 37 inch door, removable grate and tray and four feeder cups on swing-out doors. VCA's shape rule says length matters more; this is the aviary for a climber in a small room.
Best small-bird aviary
A&E Double Flight Cage 6421 with Divider (64 x 21 x 65 in, 12.7 mm spacing)
A&E's 64 by 21 by 65 inch double flight cage at 1/2-inch spacing with a divider: a 64-inch flight for finches, budgies, cockatiels or lovebirds, $653.
- Size
- 64 x 21 x 65 in overall (per the Amazon listing)
- Bar spacing
- 1/2 in (12.7 mm per the Amazon listing)
- Birds (by the tables)
- Budgies, lovebirds, parrotlets, cockatiels, canaries, finches (Merck 0.5 in row)
- Overall
- 64 x 21 x 65 in (per the Amazon listing)
Pros
- 1/2-inch bars across 64 inches
- Divider
- A&E
Cons
- 21 in deep
- The listing gives almost nothing beyond the figures
- $653
A&E's 6421 double flight cage is listed at 64 by 21 by 65 inches with 12.7 mm spacing and a divider, in iron. For a flock of finches or a few budgies it is the longest small-bird flight here; with the divider in it is two 32-inch cages. The multiple-bird guide covers it as a divided cage.
Best budget aviary (with a warning)
PawHut Wooden Bird Aviary with Asphalt Roof (50 x 28.75 x 64.5 in)
PawHut's 50 by 28.75 by 64.5 inch painted fir aviary with four perches, a nest and a slide-out tray, $190, and the wood problem VCA describes.
- Size
- 50 x 28.75 x 64.5 in overall (per the Amazon listing)
- Bar spacing
- Not stated (per the Amazon listing)
- Birds (by the tables)
- Finches, canaries, budgies by the seller; spacing unknown, so measure before any bird goes in
- Overall
- 50 x 28.75 x 64.5 in; 39.6 lb; fir and steel mesh (per the Amazon listing)
Pros
- 50 inches of length for $190
- Looks like furniture
- Asphalt roof and outdoor paint (listing)
Cons
- Wood: VCA says parrots chew it and it cannot be disinfected
- Bar spacing not stated
- Listing figures only
PawHut's wooden aviary (model D10-070V02GY) is listed at 50 by 28.75 by 64.5 inches in painted fir with steel mesh, four perches, a nest, a feeding board, a large door, a slide-out tray and an asphalt roof, for indoor or outdoor use. VCA's housing pages discourage wood, wicker and bamboo because parrots chew through them and wood cannot be cleaned and disinfected effectively; for finches and canaries that do not chew, the warning is about cleaning, and the mesh spacing is not stated, so measure it.
How we chose
Size (interior where stated, overall flagged), bar spacing against the Merck table for the birds the aviary suits, stated wire, doors and feeding access, material against VCA's housing advice, and price (October 9, 2026). The outdoor aviary guide covers the ones built for weather.
Every pick against the tables
| Aviary | Size (in) | Bars | Wire | Merck row it clears | Price |
|---|---|---|---|---|---|
| A&E walk-in WI8662 | 86 x 62 x 79 | 1 | 5 mm | Macaw (48 x 36 x 66) | $2,740 |
| Seny double | 64 x 32 x 73 | 1 | Not stated | Grey/Amazon (40 x 30 x 60) | $830 |
| Flyline corner X-Large | 51.2 x 51.2 x 73 overall | 3/4 | 1/8 in | Grey/Amazon by overall figures | $760 |
| Flyline XXL | 35.5 x 35.5 x 80 | 1 | Not stated | Conure (36 x 24 x 48) within 0.5 in; not grey (40 in length) | $661 |
| A&E double flight 6421 | 64 x 21 x 65 | 1/2 | Not stated | Small bird (20 x 20 x 30) | $653 |
| PawHut wooden | 50 x 28.75 x 64.5 | Not stated | Mesh, not stated | Small bird, if the mesh passes the finger test | $190 |
Buying guide
Flight, not height
RSPCA: two wing beats between perches, longer rather than high. The walk-in and the two 64-inch cages give that; the 80-inch Flyline gives height.
Material
VCA: all-metal cages are the most practical to keep clean; wood, wicker and bamboo are chewed and cannot be disinfected; uncoated stainless is most preferable; some older coatings contain zinc. Prevue's FAQ says its powder coats are zinc-free; A&E's and Flyline's listings say powder-coated or wrought iron and nothing about zinc. The coating comparison.
Doors
An aviary you cannot reach the back of is an aviary you cannot clean. The walk-in's 69 by 25 inch door, Flyline's 17 by 37 inch door and the Seny's large front doors are the point; a wooden aviary's small door is the catch.
Floor
Grates and trays (Seny, Flyline, A&E's base) or a solid floor with liners; the MSPCA says to cover wire floors with newspaper or a solid surface because exposed wire abrades feet and catches toes. The cleaning guide covers liners.
The room
A 340-pound aviary needs a floor, a doorway it fits through in pieces, and placement away from the kitchen, drafts and windows (Merck's owner page; VCA). The placement guide.
What to skip
Skip wooden aviaries for parrots. Skip any aviary whose spacing is not stated until you have measured it. Skip the walk-in without its base unless you have a plan for the floor. And skip calling a tall cage an aviary; the bird flies sideways.
Frequently asked questions
What is the difference between a flight cage and an indoor aviary?
Size. A flight cage is wide enough for a small bird to fly between perches (30 to 37 inches); an aviary is big enough for a parrot to do the same, or for a person to walk in. A&E's 86-inch walk-in and Seny's 64-inch double cage are the aviaries here.
What is the best indoor aviary for an African grey?
A&E's walk-in (86 by 62 by 79, 1-inch, 5 mm bars) if you have the room and $2,740; Seny's 64 by 32 by 73 double cage with the divider out under $900. Both clear Merck's 40 by 30 by 60 row.
Are wooden aviaries okay for birds?
VCA discourages wood, wicker and bamboo for parrots: they chew through it and it cannot be disinfected. For finches and canaries the chewing is not the issue but the cleaning is, and PawHut's listing does not state its mesh spacing.
Does a walk-in aviary need a base?
A&E's walk-in is sold without its base; the base with trays and grates is a separate purchase that attaches to the frame (retailer listings). Without it the aviary stands on your floor.
Can an indoor aviary go outside?
Not the metal ones here: retailers' listings for A&E's walk-ins say they are not for outdoor use. The outdoor aviary guide covers the wood and galvanized-steel aviaries built for weather and the zinc question that comes with galvanizing.
How much floor does an indoor aviary need?
The walk-in is 86 by 62 inches plus room to open a 25-inch door; the Seny is 64 by 32 plus its skirt; the Flyline corner is 51 inches along each wall. Add the 4 feet of clearance from a kitchen, draft or window that the placement sources ask for.
Sources
- Overview of Pet Birds, Merck Veterinary Manual
- Minimum and Bar Spacing Recommendations (table), Merck Veterinary Manual
- How to help your pet bird have a good life, RSPCA Australia
- Housing Large Birds, VCA Animal Hospitals
- Housing Small Birds, VCA Animal Hospitals
- Suggestions for Housing Birds, MSPCA-Angell
- FAQs: Bird Cages, Prevue Pet Products
Cover photo: 20230408-FS-PJK-7009 by USDAgov, Public Domain Mark, via Flickr. Cropped.
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