How do Ravens and Pigeons know exactly where to deliver written messages?

by somti

I’ve seen in game of thrones how the ravens were so efficient and in war movies where pigeons deliver through battle. But how are they taught to be so accurate

silverappleyard

Not to discourage further discussion, but you might be interested in these previous answers:

How frequent do pigeons (or other birds) get used to deliver messages during the ancient to medieval era? by u/Cenodoxus
How common was the use of birds to carry messages during the middle ages? by u/Celebreth