HBW 2, p. 364
- Large terrestrial birds, with bulky body and generally dull plumage; males have variety of appendages on brightly coloured bare skin of head and neck.
- North and Central America.
- Arid to mesic terrestrial environments with mixture of forest and grassland, or agriculture.
- 1 genus, 2 species, 7 taxa.
- No species threatened; none extinct since 1600.
List of species:
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