Bird Behavior, Silver Award Winner – Henley Spiers, “Guillemot Swimmers.” © Henley Spiers | Bird Photographer of the Year
“Common Guillemots (Common Murres) are incredible freedivers – so good, in fact, that studies have shown that of all flying birds, this humble species is the most efficient swimmer. It is bested in the water only by penguins, with which it shares similar stylistic traits. The difference, of course, is that penguins – perhaps descended from the same auk family as Common Guillemots – sacrificed their ability to fly as they adapted to an aquatic existence.”