Food
Bird food for pet birds can either be a seed based diet, or an extruded pellet diet. Seed diets tend to be less complete nutritionally, as birds pick out the pieces they want and leave the pieces they do not want behind or they throw them out on the floor. This is a bit like a child not wanting to eat his or her vegetables. If a bird is converted over to a pelleted diet, each pellet is nutritionally complete so even if the entire pellet is not eaten and the bird moves on to another one, they are getting equal nutrition. Additionally, a pelleted diet does not leave behind messy seed husks.