Feathers are undoubtedly a huge part of why some birds are so beautiful. They are often vibrant and colorful with intricate patterns, but don’t be fooled, they are not just for show. Feathers serve many important purposes, like providing thermoregulation and aiding in flight. Birds are covered in a variety of different feathers, each with its own unique role. Down feathers trap heat near the body, while flight feathers are large and aerodynamic, allowing many species to fly. Others, usually males, use bright or iridescent feathers accompanied by a methodical dance to court their ladies. Sometimes feathers are even plucked and added to nesting material to create a warm, soft space for eggs and chicks.