Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. The guans are a number of bird genera which make up the largest group in the family Cracidae. They are found mainly in northern South America, southern Central America, and a few adjacent Caribbean islands. The guans make up four genera in the subfamily Penelopinae; furthermore there is also the peculiar Horned Guan (Oreophasis derbianus) which is not a true guan, but a very distinct and ancient cracid with no close living relatives (Pereira et al. 2002).

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