TABLE OF CONTENTS. 



PAOE 



VI. Feeding :iiul Care of the Young 63-71 



General Nature of the Activities 63 



Fi-rding nf Vomit 65 



Anomalous Feeding Behavior 67 



Transference of Young to Foster 1'iirents 68 



Voice 69 



Food-Cull of Young 69 



Food-Call of Adult Bronze-Wing 69 



Feeding-Call of Bronze-Wing 70 



Hesistaiiee to Intruders 



Note of Alarm of Bronze-Wing 71 



Flock Whistle of Young Bronze-Wing 71 



CHAPTER VII. Defective Cycles " 3 ~? 6 



Bronze-Wing 73 



First Cycle 73 



Second Cycle 74 



Third Cycle 75 



Fourth Cycle 75 



Geopelia Humeralis 76 



Passenger-Pigeon Male and Ring-Dove Female 76 



First Cycle 76 



Second C3'cle 77 



Third Cycle 78 



Crested-Pigeon Male and Ring-Dove Female 79 



First Cycle .... 79 



Second Cycle 81 



Blond Ring Male and White Ring Female 81 



Hybrid Male and Mourning-Dove Male 83 



Leucosarcia picata 83 



Mourning-Dove Male and White-Ring Female 83 



Homer Male and Hybrid Female 84 



Eclopisles 84 



Miscellaneous 84 



CHAPTER VIII. The Genetic Standpoint in the Study of Instinct 87-91 



Genealogical History Neglected 87 



The Incubation Instinct 87 



A Few General Statements .- 90 



CHAPTER IX. Reproductive Cycle Summary and Analysis 93-110 



Descriptive Summary 93 



Species Differences 96 



Sex Differences 97 



Mating Preferences 98 



Fidelity of Pairing 101 



Functional Inter-Relationship of Activities 101 



Feeding 101 



Incubation 102 



Nesting 105 



Sexual Activities 106 



Egg-Laying 108 



Miscellaneous 109 



CHAPTER X. Voice and Instinct in Pigeon Hybridization and Phylogeny 111-123 



On Species Relationships in Pigeons 112 



Voice and Instincts in Hybrids from Crosses of Species and Genera 113 



Hybrid between a Male St. alba-risoria and Female Spil. surate.nsis 113 



Male Hybrid between a Male Blond Ring and a Female Japanese Ring 114 



The Voice of Ring-Doves 114 



Voice and Instincts in Hybrids from Crosses of Families and Subfamilies 115 



Male Hybrid between Male Common Pigeon and Female Japanese Turtle 115 



Hybrid between a Male Zenaidura carolinensis and Female St. risoria 116 



Hybrid between a Male Ectopistett and a Female Ring-Dove 118 



Instincts in Eclopisles Ring-Dove Hybrids 118 



Voice and Behavior in Certain Wild Species 119 



Voice and Sexual Behavior of Ectopistes 119 



Voice of the Mourning-Dove (Zenaidura carolinensis) 121 



Voice of Zriitiiiln 121 



Voice and Behavior of the White-Winged Pigeon (Melopelia kucoptera) 122 



Summary : 123 



