Respuesta :

8% to 12% migratory birds travel between 700 to 1300 miles per year.

Explanation:

Migratory birds are those birds that fly from north to south at the time of breeding as well as during winter. Birds that migrate are Flamingo, Bluethroat, Amur Falcon and many others. Birds living in the northern hemisphere migrate towards north during spring due to food, that is insect population is more, more plants are available, and have proper nesting location.