A generalized fecal glucocorticoid assay for use in a diverse array of nondomestic mammalian and avian species, Hunt Kathleen E, Wasser Samuel K, Millspaugh Joshua J, Brown Janine L, Cooper Kathy, Crockett Carolyn M, Bechert Ursula, Larson Shawn, and Monfort Steven L, General and Comparative Endocrinology, 2000, Volume 120, Issue 3, p. - -275 (2000)