The Laughing gull (Leucophaeus atricilla) is aptly named, as its extended, "ha-ha-ha" call resembles laughter. The largest of the dark-hooded gulls, it lives in North and South America, has an easily spotted black head. In summer, the head is black with a dark red bill. In winter, the head is white with a black-smudged bill and dusky nape. Sexes are similar, though Laughing Gulls take three years to reach adult plumage. They eat insects, crustaceans, and fish.