CHAPTER VI. PAGE 



Migration. — ^Dr. Eagle Clarke's ' ' Studies in Bird Migra- 

 tion" — ^Ancient beliefs — The "hibernation" 

 theory — ^Transmutation — ^Willughby and Ed- 

 wards — Modem views — Fly lines — Long distance 

 flights — ^Whence and whither — Motives that lead 

 to migration — How are migrants guided ? 

 Memory and parental guidance — ^Magnetism of 

 earth — ^The ancient Wisdom 66 



CHAPTER VII. 

 Occult Senses in Birds. — ^Man's Five Senses — Probabi- 

 lities of additional senses in Birds. — ^Failure of 

 the known senses to account for actions of Birds 

 and Insects — A way-finding sense — ^Mr. J. H. 

 Gumey's \'iews on occult senses in Birds — ^Flock 

 of Birds moving in unison. 79 



CHAPTER VIII. 

 Property in Bird Life. — Sparrows and Moorhens de- 

 fending property — Rooks as tree-owners — ^Mr. 

 Eliot Howard's " Territory' in Bird Life" ... 83 



CHAPTER IX. 

 Language of Birds. — ^Expression of ideas — Birds' song — 

 Specific differences in notes — Distinguishing birds 

 by their note — Birds' voices at night — Human 

 quality in birds' song — Musician and bird — Why 

 birds sing — ^Mimicry— ^Dialect — ^Abnormal song 88 



CHAPTER X. 

 Marriage. — ^Esthetic side of love-making — Conjugal 

 responsibihty in birds — ^IVIonogamy v. polygamy 

 — Affinities in birds apart from sex — Nesting 

 ages 108 



CHAPTER XI. 

 Childhood. — General references to infancy of animals — 

 Animals with no childhood — Infants that are 

 essentially different from their parents — Children 

 that never grow up — Birds that avoid a callow 

 infancy — Parental guidance — Instinctive know- 

 ledge — Inborn fear — Specific notes inherited — 

 Woodcock and snipe carrying young — ^Adoption 

 of orphans — Maternal instinct in very yoimg 

 birds n6 



