INTERNAL MIGRATIONS. 149 



on the Bermudas, Bahamas, Madeira, &c., and 

 wanders south in winter, even as far as Australia 

 and New Zealand. It was my intention to devote 

 a chapter entirely to Ocean Migration, but the want 

 of reliable information has reluctantly compelled 

 me, for the present at any rate, to remain silent. 

 Migration Flight, however, seems just as regular 

 and important among oceanic birds as in more 

 terrestrial species, and to be governed by the same 

 laws. 



These northern flights of Southern Hemisphere 

 species may yet be found to be more numerous 

 when the ornithology of the Neotropical region 

 especially is better known. At the present time 

 it is one of the least known regions in the world. 

 In South Africa and Australia, as we should 

 naturally expect, the northern migration in the 

 antipodean autumn is the most restricted, for there 

 we find the least difference between an extended 

 temperate zone and the Equator. 



It is owing to these circumstances that in 

 northern latitudes we observe very few migratory 

 birds during summer from the Southern Hemisphere 

 from an Antarctic region, giving up their little lives 

 to idleness and enjoyment, side by side with Northern 

 Hemisphere species busy bringing up their young 

 and full of family cares — an anomaly that may be 

 witnessed everywhere, in more or less frequency, 

 during the antipodean summer, when our migrants 

 are away from us, and Southern Hemisphere birds 

 are breeding. These migratory birds breed only 



