A distinctive mustache makes this tern stand out.
Inca terns sport long facial feathers, which sets them apart from other terns and their close cousins, the gulls. Healthier birds usually have the longest mustaches. The white mustache, as well as the red beak and legs, don’t fully develop until the bird is 1-2 years old.
Their dapper colors led to a unique nickname.
In the country of Chile, the Inca tern is called “moña”, meaning “nun”. This name comes from the bird’s black color and sweeping white mustache, which resemble the clothing of a nun.
A salty sneeze keeps these birds balanced.
Spending much of their time flying and feeding over the ocean, Inca terns take in a lot of salt. Too much salt can harm the tern. Glands inside their nostrils push out extra salt, keeping terns healthy.