Eggs are a useful source of protein, iodine and essential vitamins and are almost indispensable to the cook, But I Use them to paint with. Hens’ eggs are the type of egg most frequently used. Duck eggs, gull eggs and quail eggs are less frequently used hard to find and too greasy to work with. I can’t use a Quail egg because they are so cute. Goose eggs and ostrich eggs are considerably bigger and unless I learn to paint with an enormous brush I believe I could never use the entire yolk.