Your Pionus parrot will need a large enough cage so they can move around comfortably. They are very active birds, so need the largest cage that your home can reasonably accommodate. The absolute minimum sized cage that you should opt for is 24” x 24” x 32”. The larger 39” to 59” height with a floor space of 23” to 39” would be even better, as it will give your bird plenty of space to fly around in.
In terms of cage bars, ¾” spacing should be adequate. For larger Pionus birds, 1” bar spacing will be perfectly fine. It’s also worth investing in some escape-proof latches, too. The Pionus is a technically savvy bird, so will be able to work out how to open locks in no time at all. Another great thing about Pionus parrots is that they’re not strong chewers, so you won’t have to worry about getting durable cage construction.
You should fit out your cage with plenty of perches, food dishes, as well as several playthings to entertain your Pionus parrot. As with any other birds, you will also need to give your Pionus parrot at least 3 hours of out-of-cage time so that they can properly stretch their wings.