Emperor penguins carrying chicks, 1903, British National Antarctic Expedition, 1901-1904 (leader Robert Falcon Scott).
The text reads
Emperor Penguins both carrying
chicks. In the one case the chick pokes his head out clamouring for food - in
the other the chick has withdrawn his head and is quite invisible. Cape
Crozier rookery 13 September 1903.
The drawings are reproduced on page 59, plates 61 and 62, of Birds of the Antarctic by Edward Adrian Wilson, edited by Brian Roberts, Blandford Press, Dorset (reprinted 1980).
Image reference code p445b. Copyright © Scott Polar Research Institute, University of Cambridge.
Scottish National Antarctic Expedition includes more images of Antarctica