Pygoscelis adeliae is found only in the Antarctic region. Adelie penguins breed on the coasts of Antarctica and on surrounding islands. The area with the most abundant population of Adelie penguins is in the Ross Sea. (Ainley, 2002; Berger, 2004)
- Ainley, D. 2002. The Adelie Penguin: Bellwether of Climate Change. New York: Columbia University Press.