If a dove finds food in a certain location, then the dove will divert its search. on the other hand, a sign that the pigeon will continue to fly in search even though the distance is very far. So it can be said that pigeons and animals in general, give priority to the signs they can rely on, even when they mean bad news for the bird. but the difference is humans will starve to death when the loss of aid. (Oh.. Genesis eight 😭)