According to Wikipedia, Collared Aracari Toucans are unique in that they roost socially for much of the year, the mothers living communally with other mothers and fledglings.
My little guy was definitely social. I didn't get a chance to hold him -- and the way he branshished that big beak of his, I don't know if I would have wanted to -- but he was a part of Macaw Mountains' interactive exhibit.
