7. Pacific parrotlet
These are small birds which measure approximately 5 inches long. Unlike other birds in this list, the Pacific parrotlet is not available in most stores. Therefore, if you find one, the price might be a little exorbitant. The bird requires cleaning and feeding on a daily basis. Where possible, spare some one-on-one playtime with it. Toys, perches and a play gym are necessary for you to get most out of your pet. With a lifetime of 20 years, the fearless birds love to eat a lot and are curios and aggressive.