From Amundsen’s account:
“On September 29 a still more certain sign of spring appeared–a flight of Antarctic petrels. They came flying up to us to bring the news that now spring had come–this time in earnest. We were delighted to see thise fine, swift birds again. They flew round the house several times to see whether we were all there still; and we were not long in going out to receive them.
“So now spring had really arrived; we had only to cure the frost-bitten heels and then away.”