title: A survey of avian eggshell pigments.
mesh_terms: D000818:Animals; D001664:Biliverdine / Q000032:analysis; D001717:Birds / Q000378:metabolism*; D004528:Egg Shell / Q000032:analysis*; D010860:Pigments, Biological / Q000378:metabolism*; D011524:Protoporphyrins / Q000032:analysis; D013045:Species Specificity
chemical_list: D010860:Pigments, Biological; D011524:Protoporphyrins; D001664:Biliverdine