4. Bourke’s parakeet
Slightly bigger than a budgie, this is another sweet and beautiful parrot from Australia. Although it is still small with an average adult length of about 7.5 inches long, these birds require taming as they tend to fly around more often. It is recommended that you get a wider cage so that it can have adequate space to fly around. Additionally, spare some time so that you can interact with the bird. The pet bird requires daily cleaning plus a regular supply of fresh vegetables. It has a life span of about 15 years.