Truly iconic, the Atlantic puffin is a highly specialized marine bird that spends most of its life out on the high seas! They return in large numbers to breed, forming huge colonies along rocky shorelines, in tussocky hillsides, and on steep sea cliffs throughout the Arctic and parts of Northern Europe and North America. They usually return to the same burrows to breed and raise chicks each year and are mostly monogamous! Here are ten photos to make you happy, featuring the cute Atlantic puffin!