Ben Dilley (FitzPatrick Institute, University of Cape Town) describes in the on-line/open access journal Ornithological Observations how a Northern Giant Petrel Macronectes halli managed to land on a cliff ledge and kill a Sooty Albatross Phoebetria fusca chick on sub-Antarctic Marion Island.
Great pictures!
A Northern Giant Petrel on Marion Island, photographed by Marienne de Villiers
Reference:
Dilley, B.J. 2013. Living on the edge: Sooty Albatross chick killed by a Northern Giant Petrel. Ornithological Observations 4: 138-142.
John Cooper, ACAP Information Officer, 30 October 2013