Dr. Anaïs D. Laurent, Dr. Mateo S. Cruz, and Dr. Julia R. Finch. “Feather Hormones As Noninvasive Biomarkers: Assessing Stress and Metabolic Status in The Endangered Pyrenean Capercaillie (Tetrao Urogallus Aquitanicus)”. International Journal of Multidisciplinary Research and Studies, vol. 8, no. 09, Sept. 2025, pp. 01-15, https://ijmras.com/index.php/ijmras/article/view/802.