4. Nature
The principle of using homing pigeons as messengers is based on their instinctive attempt to return to their home lofts whenever they are removed some distance and released. They will do this even with an attached message or other light article. This desire to return is largely based on natural urges of hunger and reproduction. Because the pigeon has only one mate the reproductive urge is often the stronger. These impulses can be stimulated by controlled feeding, mating, and breeding without harming the pigeon’s health.