NATURAL HISTORY IN ICELAND — HUXLEY 



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FiGUEE 2. — Types of geographical distribution of Iceland birds. Upper, breeding 

 and distribution of Holarctic species, the red-breasted merganser. Lower, 

 breeding distribution of a Palearctic species, the wigeon, which extends from 

 Bering Straits westward, to overlap with the great northern diver (fig. 3, 

 upper) in Iceland. (Based on maps compiled by James Fisher.) 



