It has been possible to teach a migration route to a flock of birds, for example in re-introduction schemes. After a trial with Canada geese Branta canadensis, microlight aircraft were used in the US to teach safe migration routes to reintroduced whooping cranes Grus americana. COUNT 4
QSN1 What is a re-introduction scheme? ANS1 to teach a migration route to a flock of birds QSN2 What did they use to teach birds a migration route? ANS2 microlight aircraft QSN3 Which birds did they reintroduce to the US? ANS3 whooping cranes QSN4 Which birds did they use as a trial run? ANS4 Canada geese