One of the most reliable ways to pass messages, even during the last world war, was by carrier ... that drawing an assignment in the Signal Corps might involve learning about breeding pigeons ...

our children will be writing messages or drawing pictures on discs the size of a postage stamp that go on to a cartridge that is attached to the pigeon. We’ll also be printing carrier pigeons on ...

A carrier pigeon that saved soldiers in WWI can now be found at the Pentagon. In the third floor hallway of the Pentagon, just outside the Army Chief of Staff's office, there is a pigeon.