Gail Bier, age 12, of Seattle, Wash,;

Migrating birds tend to follow the same route, year after year, generation after generation  These well traveled routes are called flyways and there are four of these major flyways over North America, Migrating geese and certain sea ducks tend to take the Pacific Flyway which follows the shores of the Pacific Ocean from the far north down to Mexico 

Other water fowl who summer inside the Arctic Circle take the Central Flyway from north of Hudson Bay down along the line of the Rockies  Countless birds take the Mississippi Flyway which more or less follows the valley of the great river south to the Gulf of Mexico  Birds from Greenland, eastern Canada and New England tend to take the Atlantic Flyway which follows the Atlantic shore to Florida, Cuba and South America,