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.
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 .
What did they use to teach birds a migration route?
What did they use to teach birds a migration route ?
microlight aircraft
microlight aircraft