This antique book contains a detailed and interesting guide to breeding very specific colours into pet birds. The perfect book for both professional and private breeders, this text is accessible and comprehensive, and constitutes a great addition to any collection of avicultural literature. Chapters contained in this book include: 'Good and Bad Matings', 'It Cannot be Done', 'General Principles', 'Type Visibility', 'Importance of Ancestry', 'Hereditary Colour', 'Dipping into the Green', 'Light Greens', 'Dark Greens', 'Olive x Mauve', 'Light Yellows', 'Dark Yellows', 'Skyblues', 'Cobalts', et cetera. This book has been chosen for republication due to its educational value, and is proudly republished here complete with a new introduction to the subject of aviculture.