 
 <prompt> Wetin no dey plenty or no dey exist for US before dem intervene? Based on di question wey dey above, write one context wey contain di answer. E fit be 1 - 20 sentences. Context: <response>: E don dey possible to teach birds how to migrate, for example for re-introduction programs. After dem try am with Canada geese Branta canadensis, dem begin use microlight aircraft for US to teach whooping cranes Grus americana how to migrate safely. 