Have been using for my coatimundi. Not sure how it would fare with a bird. But I'm not a bird person, so that's fine. My Diego climbs up the sides, stands on the food bowls, and loves the extra space. Very sturdy. He's about the size of a cat and I haven't had a single issue with this cage so far. Stays pretty clean. Moves well on the wheels. Easy to clean. Takes a little to assemble but is well worth it.