Table of Contents
Introducing the Chicken 6
Chapter 1 Evolution & Domestication
Origins of the Domestic Chicken 14
The Chicken in History & Culture 16
The Changing Role of the Chicken 18
The Chicken of Tomorrow 20
Chapter 2 Anatomy & Biology
The Skeleton 24
Muscles 26
Heart & Circulation 28
Respiratory System 30
Digestive System 32
Male Reproductive System 34
Female Reproductive System 36
The Immune System 38
The Skin 40
Feathers 42
Wattles & Combs 44
Sensory System 46
Thermoregulation 48
Adaptations for Flight 50
Chapter 3 Behavior
Behavior of the Domestic Chicken 54
Evolution & Domestication 56
Behavioral Differences between the Sexes 60
Feeding & Drinking 62
Resting & Roosting 64
Maintaining Appearances 66
Avoiding Predators 70
Alarm Calls 72
Flock Formation 74
Aggression, Competition, & Alliances 78
Calling & Other Vocalizations 82
The Consequences of Mating 86
Nest Building & Egg Laying 90
Incubation 92
Behavior of Embryos 94
Hatching 96
Parental Behavior 98
Behavior of Chicks 102
Behavioral Role Models 106
Chickens Behaving Badly 108
Chapter 4 Intelligence & Learning
Intelligence & Learning 114
Inside the Brain 116
Lateralization & Vision 118
Imprinting & Learning 122
Cognitive Ability 126
The Effects of Domestication 130
Social Learning 132
Living in a Hierarchy 136
Food & Learning 140
Training 142
Understanding Chicken Preferences 146
Emotion & Welfare 150
Chapter 5 Breeds
Fancy Fowl & the Chicken Frenzy of the Nineteenth Century 156
Dual-Purpose Breeds 158
Game Breeds 164
Laying Breeds 170
Meat Breeds 184
Ornamental Breeds 190
True Bantam 202
The Evolution of Commercial Strains 210
Useful Resources
Breeds List 214
Author Biographies 217
Bibliography 218
Index 220
Acknowledgments 224