Today we"re following our nose to the Pantanal in Brazil to visit this member of the toucan family named for the brownish plumage around its ears. What, you"ve never heard of a chestnut-eared aracari? That could be because aracaris don"t really stand out among toucans at a glance: They have long, colorful bills, and they mate for life, always laying eggs in the same nest year after year. But aracaris are much more social nesters: Up to six aracari adults and all their babies might live in one nest.