Woodpecker Family
Illustrated overview of the Picidae by Don Roberson.

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.

African Barbets and Tinkerbirds (Lybiidae)
Features photos of members of this bird family. Describes their habitat and nesting.

Order Piciformes
Detailed species accounts of American Woodpeckers and Toucans from the Animal Diversity Web.