Definition
Alcidae is the family of seabirds that includes auks, puffins, and guillemots. Think of them as the penguins 🐧 of the Northern Hemisphere, though they can fly! These birds are adapted to cold, marine environments. They're expert divers, using their wings to swim underwater. Alcids breed in dense colonies on cliffs and islands. They primarily eat fish and other small marine creatures. Unlike their penguin cousins, alcids retain the power of flight.