A King could only be confused with an Emperor penguin, but the location should be a give away. To tell an Emperor from a King notice that the tear-drop shaped ear patches are yellow on Emperors and are open.
Kings have orange ear patches that are closed.
Chicks can grow larger than their parents and usually have a uniform brown plumage, some chicks have a silver grey plumage. Early explorers thought king chicks were a separate species - the woolly penguin. Two sub-species have been suggested, A. p. patagonicus from South Georgia and the Falkands, and A. p. halli from Kerguelen, Crozet, Heard, Prince Edward and Macquarie Islands. However, significant size variations occur between all the island groups and most populations from the different islands are genetically isolated from one another. Height Adult King penguins are typically 90 cm tall.