Rebong, Glenn, Marc Boussesky, Peter Widdman, Indira D. Lacerna, and Siegfred H. Diaz. 2022. “Psittacine Feather and Beak Disease Testing and DNA Sexing of Wild Red-Vented Cockatoo Chicks at Rasa Island, Palawan”. Silliman Journal 42 (2). Dumaguete, Philippines. https://sillimanjournal.su.edu.ph/index.php/sj/article/view/239.