Our group from Lindblad Expeditions spotted this very unique bird at Fortuna Bay on the subantarctic island of South Georgia. Out of several thousand pairs of king penguins, this was the only individual that was entirely black although earlier in the morning I had spotted another that showed muted coloration. Recent science papers (PDF) show that the trait has been documented only a handful of times in South Georgia. Some fellow travelers recall seeing a melanistic penguin at St. Andrew's Bay, also on South Georgia.
From the Upcoming ueue, submitted by Geekazoid.