The Cockatiel is a beautiful pet bird. The bird will exhibit different behavioral characteristics depending on whether it is male or female. A female tends to be more cuddly and docile and may even lay eggs. On the other hand, the male can be very vocal. They possess a very long tail which makes part of their body and adds to a total of 13 inches long! Thus, they take up a lot of space and require a large cage. They are dusty birds and need to be given a misty bath once or twice a week. Cockatiels require taming and have a life expectancy of 30 years.