This vintage book contains a complete guide to mule and hybrid birds, with information on habits, diet, housing, breeding, ailments, and much more. Written in clear, plain language and full of helpful diagrams and invaluable tips, this volume is a must-read for those with an interest in hybrid birds. It would make for a worthy addition to collections of allied literature. The chapters of this volume include: “Ornithology”, “Light Mules”, “Dark Mules”, “Bullfinch Hybrids”, “Goldfinch Hybrids”, “Chaffinch Hybrids”, “Brambling Hybrids”, “Redpoll Hybrids”, “Siskin Hybrids”, “Greenfinch Hybrids”, “Linnet and Twite Hybrids”, “Softbills or Insectivorous Forms”, etcetera. This vintage text is being republished now in an affordable, modern, high quality edition - complete with a specially commissioned new introduction on aviculture.