This revised paperback edition is the definitive book for those budgerigar keepers and breeders who are serious about achieving the maximum of pleasure and success in this marvelous hobby. The text presents all the essential information required to initiate the hobby and ensure a trouble-free and enjoyable pastime for the new enthusiast. It is equally full of essential information for experienced breeders keen to develop their knowledge base and understanding of the finer points of these lovely birds. The text introduces all the intricacies of budgerigar keeping, breeding and showing, with easy-to-understand and reader-friendly information on the breeding techniques and genetic background for all existing varieties. It is completely up to date with highly significant information on expressions such as the Crested and the Texas clearbody.