Adult Atlantin puffin (Fratercula arctica) during breeding season on Sumburgh Head, Shetlands, Scotland, United Kingdom

atlantic puffin puffins fratercula arctica breeding season sumburgh head scotland shetlands seabirds wildlife birdwatching nature coastal habitat colorful plumage animal behavior nesting site marine environment flora grasses rocks cliffs feeding courtship spring colors birds avian pair natural biodiversity call avifauna ornithology migration ground colony flock watching perch sea ocean landscape