Duck eggs... or at least mine have a strong flavor, more of a sulfur taste... and boy do they give my husband gas! The yolks are generally thicker, and the egg white are tougher... If you fry them add a little water to the pan first if you don't want them as tough, and they make great poached eggs that rarely break... If you bake they are the BEST and will make everything richer... and the whites whip up well for merangs and such.