There are many research done on the bird Robin, most agree on the major points, but some research say otherwise, you should always refer to multiple sources to gain the complete knowledge. Read this article and you will find most information here.
Cool Facts About Cockatiels
Cockatiels are friendly pet birds preferred by many people. The bird is smaller, cheaper, and less noisy as compared to parrots.
Cockatiel: A Beautiful Bird From The Land Down Under
Cockatiel birds are originated from the land of Australian and are accepted as a lively pet of the house.