Bond, G. et al. "The North Atlantic's 1-2 kyr climate rhythm: Relation to Heinrich Events, Dansgaard/Oeschger Cycles and the Little Ice Age," In Mechanisms of Global Climate Change at Millennial ...

The great auk (Pinguinus impennis) was a bird that dominated the North Atlantic during the ice age and into modern times. Great auks stood over 80 centimetres tall and lived on the open ocean ...