Atlantic Puffin - Fratercula arctica
Despite popular misconception, polar bears and penguins would never naturally interact. However, the Arctic does have puffins! These black-and-white seabirds have often been mistaken for penguins, but are a result of convergent evolution, not relation.
In adults, the brightly-colored beaks and “horns” on the eyes are part of their breeding plumage, and similarly to the antlers of moose and deer, are shed every year.
Puffins, like penguins, tend towards monogamy - but unlike penguins, their monogamy is largely due to fidelity towards their nesting site, not their mate. Generations of puffin families will nest in the same area, and if one gets “kicked out” or dies and another female chooses the area as a nest site, they will often find a different mate.
Brehms Tierleben, Allgemeine Kunde des Tierreichs. Prof. Otto zur Strassen, 1910.