24 



The Livivg Things of the Earth unit i 



Fig. 27 Spriiii^ iiiigratioii routes of some comvion birds. Some of these birds follow:) 

 the same routes south in the fall. Which of these birds travel the loiigest distance? 

 Some of the 60 species which follow route 2 are the bobolink, chuck-wiW s-widow, 

 the gray-cheeked thrush, the bank swallow, the black-poll warbler, and the night- 

 hawk. The picture above the map is of Canada geese taken during migration. You 

 will find it interesting to find out the migration routes of the Canada goose, (ewing 

 galloway) 



