–from Shackleton’s account ‘South’—
“An interesting incident on November 26 was the discovery of an emperor penguin rookery. Ninnis and Kavenagh took a long walk [over the sea ice] to the north-west, and found the deserted rookery. The depressions in the ice, made by the birds, were about eighteen inches long and contained a greyish residue. The rookery was in a hollow surrounded by pressure ridges six feet high.
“Apparently about twenty birds had been there. No pieces of egg-shell were seen, but the petrels and skuas had been there in force and probably would have taken all scraps of this kind.”