As defined, parrots are a very popular group of birds for possessing high intelligence depending on the degree of its socialization and training. Famous for its ability to imitate human speech and various sounds, these tropical colorful birds are mainly found in Australia and South America. Having a variety of species, parrots differ in size and color. COCKATIELS - Lovely because of the distinct pointed crown, this specie can learn tricks easily, very affectionate, and can live to a life span of 15 to 20 years given the proper care. The coating on its feather can cause allergies. Cockatiels have this distinct behavior when left in dark, which can cause self-injury. Parrots however are not satisfied with just these toys. When they get the opportunity, they will chew on everything that they get their hands on. They will puncture your clothes, your furniture, even your books. This can be really frustrating especially if you are the type of person who wants a clean house. It is quite an accomplishment to see your bird do it in a command. It means the next tasks are on the right stake. Freedom and discipline don't go handy with parrots. Just like spoiled brat kids it will have the tendency to abuse freedom. Once a parrot uses its wings on its first fly, it is dominating the situation. Future behavioral patterns, ability to relate, levels of socialization and emotional health of the parrot will also greatly depend on the kind of care it received from its breeder. One of the major responsibilities of parrot breeders is feeding the parrot. Since there are different parrot species, parrot breeders will have to learn how to respond properly in feeding in each kind. African Gray has two sub-species; the (1) Congo African Gray (Scientific name - P. e. enthacus), and (2) Timneh African Gray Parrot (P. e. timneh). Both sub-species of the African Gray resemble in color, the difference is that the Congo African Gray color shades are deeper than that of the Timneh African Gray.