For example, one year we had one breeding whooping crane pair start the migration in early March, and the last breeding pair left Aransas on April 20. That's quite a span of time. You don't have to worry about the cranes that leave late. Those late migrants usually make a more rapid trip to Canada so that all the adult pairs will get up to Canada in time to nest. Our last update described why high wires were extremely dangerous to migrating cranes, and we told you about new little coils called Bird Flight Diverters that should help solve the problem.
Cranes have trouble seeing wires because nothing like wires exists in nature.
Cranes have no idea of a wire's width. Since the ends of a wire are so far apart and far away from them, cranes have no idea how far they are from a wire until they get dangerously close. This helps cranes avoid smacking into the wire. Answer only ONE question in each e-mail message. In the body of EACH message, give your answer to ONE of the questions above.