Adult Atlantic puffin (Fratercula arctica) during breeding season on tiny Grimsey Island, Iceland

atlantic puffin fratercula arctica breeding season grimsey island birdwatching wildlife nature seabirds coastal habitat colorful beak nesting moss rock ledge avian environment conservation ecology iceland marine birds bird behavior enthusiasts ornithology preservation natural beauty spring summer cliffs migratory ocean avifauna setting animal pair bonding colors aerial display life ecosystem observation