Hoatzin - Relic of Prehistory? - Article by Adrian Warren on the biology of Opisthocomus hoazin, which may be a link with birds that became extinct millions of years ago, and even shows similarities to the first known bird, Archaeopteryx.
International Touraco Society - Dedicated to the conservation of the rare bird family Musophagidae from Africa, commonly known as Touracos or Turacos.
Introduction to the Cuckoos - The brood parasitic cuckoos lay their eggs in the nests of other birds and never rear their own young. Article and list of species. [PDF]
Yellow-billed Cuckoo (Coccyzus americanus) - Species account describes this bird's range, habitat, physical appearance, reproduction, and behavior. Includes a photo and sound file.
