CONTENTS. 



PAG I 



Ancient Migrations — Migrations of Polar Birds — 

 Ancient Species of Charadriid/e — Inter-Polar Migra- 

 tion — Mr. Seebohni's Glacial Theory of Dispersal — 

 Isolated Species of Charadriid.e in the Southern 

 Hemisphere — Shortness of Migration Flight in South- 

 ern Hemisphere — Gradations of Migration — Incipient 

 Migration — Short Migration Flight — Long Migration 

 Flight — Extended Migration Flight — Table of Mi- 

 grnnts — Migration demonstrated — Return of Birds to 

 Old Areas 2\ 



CHAPTER HI. 



THE PHILOSOPHY OF MIGRATION. 



Wings of Migratory Birds — Plumage of Migratory Birds- 

 Moulting — Order of JNIigration in Autumn — AviDit- 

 Courieres — Migration of Young Birds before Parents — 

 Order of Migration of iVdults — Order of Migration in 

 Spring — Time of Migration Flight — Punctuality of 

 Migrants — Amount of Sociability and Gregariousness 

 in Migrants — Weather-bound Migrants — Duration and 

 Progress of Migration — Speed of Migration Flight — 

 Rapid Flight of Dotterel in Spring — Altitude of Mi- 

 gration Flight — Influence of Bright Lights on Migrat- 

 ing Birds — Migrants at Lighthouses and Light-ships — 

 Effects of Reflected Light — Advantages derived from 

 Lofty Flight — Possible Use of the Balloon in studying 

 Migration — Cries of Birds on Passage — Effects of 

 Wind on Migration — Influence of Temperature on 

 Migrating Birds 



CHAPTER IV. 



ROUTES OF MIGRATION. 



Intricate Nature of Fly-lines— Sea Routes of Migration — 

 Migration over the Azores — ^Migration at the Ber- 



