296 



lyDEX, 



Merula viai'eensis^ 123 

 Meriila merula, 247 

 Mei'ida obsciira, 214 

 Merula poliocephala^ 1 2 3 

 Merit la pritzbiieri, 1 2 3 

 Merula teinpesti, 123 

 Merula torquata, 1 09, 191 

 Merula viiiitincta^ 123 

 Merula xa)ithopus, 123 

 Migrants, arriv^al of exhausted, 



172 

 Migrants at lighthouses and light- 

 ships, 81 

 Migrants, effects of high rate of 



mortality among, 186 

 Migrants, enemies of, 173 

 Migrants, foghorns and, 175 

 Migrants, gregariousness and so- 

 ciability of, 73 

 Migrants losing their way, 178, 



179, 180, 181 

 Migrants, mortality amongst, 169 

 Migrants notbreedingin Northern 



Hemisphere, 151 

 Migrants, punctuality of, 72 

 Migrants, single breeding of, 149, 



150 

 Migrants, striking force of, 177 

 Migrants, telegraph wires and, 176 

 Migrants, the destinations of the, 



187 

 Migrants, weather-bound, 74 

 Migrating birds, intluence of 



bright lights on, 81 

 Migration, ancient routes of, 99 

 Migration, ancient writers on, i 

 Migration and Instinct, 19, 20, 25 

 Migration and Reproduction, 220 

 Migration and Wind, 246 

 Migration, Antarctic, 95 

 Migration, antiquity of, 27 

 Migration, coast routes of, 97 

 Migration, conditions of, in Au- 

 tumn reversed, 223 

 Migration correlated with terres- 

 trial change, 229 

 Migration, cries of birds on, 84, 85 

 Migration, dangers of, 169, 170 

 Migration, day and night, reversed 

 according to season, 206 



Migration, demonstrated, 58, 59, 



60, 61, 62 

 Migration, duration and progress 



of, 75, 76 

 Migration, early observers of, 2, 3 

 Migration, effects of wind on, 85, 



86 

 Migration Flight, altitude of, ']'], 



78, 79, 80 

 Migration Flight, change of direc- 

 tion in, 252 

 Migration Flight, direction of, in 



autumn, 227 

 Migration Flight, extended, 56, 57 

 Migration Flight, fatigue of, 170 

 Migration Flight, long, 56, 57 

 Migration Flight, moderate, 56, 57 

 Migration Flights, extended, rea- 

 son for, 46, 47 

 Migration Flight, short, 56, 57 

 Migration Flight, shortness of, in 



Southern Hemisphere, 53 

 Migration Flight, speed ot, 76, ']'] 

 Migration Flight, table of, 57 

 Migration Flight, time of, 71 

 Migration, future of, 40, 41 

 Migration, gradations of, 54 

 ^Migration, great routes of, 90 

 Migration Impulse, early age at 



which manifested, 200 

 Migration, impulse of hereditary, 



26 

 Migration in British Islands, di- 

 verse character of, 239 

 Migration, incipient, 55, 57 

 Migration, influence of, on insular 



avifaunas, 131 

 Migration in Southern Hemisphere, 



141 

 Migration, intensity of, in spring, 



205 

 Migration, Interpolar, 47, 48, 49, 



50 

 Migration in the British Islands, 



238 

 Migration movement, influence of, 



on species, 265 

 Migration, necessity of, in autumn, 



24 

 Migration, nomadic, 158 



