The puffin is most commonly taken for its feathers.
There is an immense variety of water-fowl, including the phalarope, fulmar petrel, kittiwake, Manx shearwater, black guillemot, whimbrel, puffin and white-tailed eagle.
They are rich in sea-fowl, the most common being the eider duck, puffin, Manx shearwater, black guillemot, kittiwake and herring gull.
Bede tells us that Edwin had subdued the islands of Anglesey and Man, and the Annales Cambriae record that he besieged Cadwallon (perhaps in 632) in the island of Glannauc (Puffin Island).
Perhaps a slower growth rate and later fledging compared to other auks may benefit Puffin chicks.