Birck, Arlei José, et al. “Morphology and Morphometry of the Magellanic Penguin (Spheniscus Magellanicus) Trachea”. Journal of Health & Biological Sciences, vol. 11, no. 1, July 2023, pp. 1-6, doi:10.12662/2317-3076jhbs.v11i1.4773.p1-6.2023.