THE BIRDS' AIR LINE 



spend what is really their winter off our coasts. 

 Unless storms should blow them ashore, they 

 probably never touch land from the time they 

 leave their home in the Far South until they 

 return to it. 



SUGGESTIONS FOR STUDY 



What bird travelers have you seen in their winter 

 homes? When did they arrive? Where had they 

 come from? How long did they stay? Do you 

 know where any of our summer resident birds that 

 come to us from the south in the spring spend the 

 winter? Trace on the map a route from New York 

 City to Oregon by way of Pittsburgh, St. Louis, 

 South Dakota, Arizona, and Oregon. About how 

 much longer is it than a direct line from Oregon 

 to New York City? Trace on the map the route 

 followed by a Cliff Swallow that winters in South 

 America and nests in Nova Scotia. What European 

 bird travels every year to eastern North America? 

 Where do many of the migrating birds of the west- 

 ern United States spend the winter? Follow on the 

 map the migration route of the Blackpoll Warbler. 

 Trace on the map some of the principal migration 

 routes of bird travelers of eastern North America. 

 Mention some birds that spend the winter at sea. 

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