Fun Fact: Carrier pigeons

"Carrier pigeons" have been used to relay written messages for thousands of years. As early as 3000 B.C, the Egyptians were using pigeons' "homing" skills by having them carry written texts across great distances. Once pigeons have established their connection to a particular location, their instinctual navigation remains sharp, and they can return home even from very far distances, traveling up to 600 miles in a single day.

Source: luxwisp.com