Male African penguins are distinguishable from females due to their colors and deeper, more robust bills.
During breeding, male and female African penguins are most distinguishable from one another due to their patterns of colors. Males also have deeper, more robust bills.
• Image | © Paul Mannix, Some Rights Reserved (CC BY 2.0)
• Sources | (BirdLife International, 2016; Pearce, 2011; Shannon & Crawford, 1999)
