Turkey, Ducks, and Coyote....
Above all other lessons you learn, remember this:
Camouflage, Camouflage, Camouflage. Birds can see in color... that is why the males are brightly colored (so they can impress and attract a female). Because they can see in color... they are really good at picking up on small subtle differences.
Why do you think the Duck Commander himself, is so adamant about face paint??
Coyotes are Predators. They litterally exist off of catching glimpses of subtle movements of their prey.
So camouflage is important to not stand out.

This was one of the best tips I ever got as a young hunter. Camo, above all else.