Various Backyard Chicken Breeds

http://chickenbxev281.yousher.com/the-calories-in-a-banana-are-nature-s-power-food-that-will-make-you-stronger

Chicken and Turkey tend to carry less fat than birds such as duck or goose. If you didn't know already, muscle weighs well over fat. So, the necessity for the mass manufacture of food is somewhat debatable