Cooke, Fred2013-03-132013-03-1313/03/2013http://hdl.handle.net/10315/20866Figure shows that younger adults lay smaller eggs.http://creativecommons.org/licenses/by-nc-nd/2.5/ca/LesserSnowGeeseEggweightFemalesAgeFred CookeFredCookeChurchillManitobaPhotograph