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HOW TO FIND BIRDS. 





River valleys harbor birds. 



There are birds everywhere, but not always. In winter there 

 are practically no birds above the timber line on high mountain 

 peaks or near the north pole. Mr. Donald McMillan, the 

 Arctic explorer, tells me that the raven is almost the only bird 

 that commonly winters at Etah, the northernmost Eskimo 

 settlement in Greenland. During periods of migration, and in 

 the depth of winter, there are always times and places in the 

 temperate zone where there are few, if any, birds. In the 

 breeding season birds may be found, even in the desert, but 

 they prefer some localities to others, and are most numerous 

 in those that suit them best. 



Where to Look. 



The bird student soon finds that some localities are better 

 supplied with bird life than others. Many species, while 

 migrating, follow or visit such coasts or river valleys as lie 

 along or across their natural lines of migration. The seaboard 

 near Boston and northward, and the valley of the Connecticut 

 River, are much frequented by birds migrating through Massa- 

 chusetts. Cape Cod and the coast region of southeastern 

 Massachusetts are not visited in spring and summer by so 



