CHAPTER XXV 



TELiESTHESIA 



Tel-s;sthesia — clairvoyant perception — ac- 

 counts, I believe, not only for the " homing " 

 instinct, but it is this same faculty (travelling 

 clairvoyance) which enables birds of different 

 species on migration to find their way to 

 remote countries over hundreds, nay, thous- 

 ands of miles of land and sea. 



With seasonal regularity millions of birds 

 journey to and fro from one continent to 

 another. Birds of the year are, of course, 

 making the journey for the first time. How 

 do they achieve such an undertaking? 

 " Observation and memory " theorists assert 

 that the young birds are conducted by their 

 parents, or others who have made the journey 

 before. Let us consider what this really 

 amounts to. Picture a case, the case of the 

 Willow- Warbler, for instance. 



The Willow- Warbler (P. trochilus) is a very 

 small bird of weakly flying habit, nevertheless 

 it is a long distance migrant. Supposing, then, 



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