A researcher with the Center for International Conservation and Development has published an article describing how to interview an endangered species of penguin on a remote island in Antarctica.
Researchers said they had tracked the penguins for months before they were killed off in a 2010 wildfire.
They said the loss of the penguin population caused by the wildfire was the worst in the past 20 years.
The penguins were first discovered in the area by a researcher named David Wilton in the early 1900s.
The first sighting was in 1953, and the last sighting was during a research expedition in 1956.
The center said Wilton, who died in 2002, was “one of the most influential conservation biologists of the 20th century.”
The penguin is a small species of white-crowned penguin, which are about one-third the size of the common red-headed penguin.
They live in the Beaufort Sea in Antarctica and in the eastern Beaufort River Basin in the Antarctic Peninsula.
Scientists have documented the loss or disappearance of the population in the region by several different factors.
The first sighting in 1953 was by a Dutch fisherman, Wilton said.
The last was in 1956, he said.
The last time researchers saw the penguens was in 1976, when a helicopter crew was looking for the last surviving members of the colony.