While cages with vertical bars are fine for Canaries and Finches, hookbills enjoy climbing, and should live in cages with horizontal bars. And the covers rarely do what they claim to keep a bird's toenails files. Birds like an occasional bath too. Offer a bowl of clean water, or take your bird into the shower with you. Most birds love water, many will sing and whistle as they bathe.
Preventive care is very important, because birds are defensive animals.
So schedule yearly checkups, to test for problems while they're treatable. I may sound as if birds are finicky, high-maintenance creatures, but in fact, most are hardy and adaptable, once you understand their needs. And the rewards of their intelligent, affectionate, and entertaining companionship are well worth the attention to detail.