In an ear deafening colony of two hundres thousands penguins, the adult uses the sound to recognise their offspring when returning from fishing to feed the chick. It can sometimes be a time consuming excercise. South Georgia 2015.
Photo ID: 2015-11-14_10418-2
Photo size: 2.1 Mpixels (5.9 MB uncompressed) - 1772x1164 pixels (5.9x3.9 in / 15x9.9 cm at 300 ppi)