African Barbets and Tinkerbirds (Lybiidae): Features photos of members of this bird family. Describes their habitat and nesting.American Barbets (Capitonidae): Illustrated overview of this bird family by Don Roberson.Asian Barbets (Megalaimidae): Don Roberson's description of this family of birds. Includes photos.Order Piciformes: Detailed species accounts of American Woodpeckers and Toucans from the Animal Diversity Web.Woodpecker Family: Illustrated overview of the Picidae by Don Roberson.