Figure 19. — Distribution and migration of the bobolink. In crossing to 

 South America most of the bobolinks use route 3 (fig. 17), showing 

 no hesitation in making the flight from Jamaica across an islandless 

 stretch of ocean. It will be noted that colonies of these birds have 

 established themselves in western areas, but in migration they ad- 

 here to the ancestral flyways and show no tendency to take the short 

 cut across Arizona, New Mexico, and Texas. (See p. 55.) 



56 



