He moved to Australia in 1969 to participate in the 1970 Australian National Antarctic Research Expedition (ANARE). There he wintered on Macquarie Island and worked on speciation in Giant Petrels.
In 1969, he moved to Australia for participation in the 1970 Australian National Antarctic Research Expedition (ANARE). During this expedition, he resided on Macquarie Island over the winter and focused his work on studying Giant Petrel speciation.