Spixs Guan (Penelope jacquacu) Science Article 1
abstract
Curassows, guans, and chachalacas (familyCracidae) are large-bodied (400 g to 3500 g)galliform birds found exclusively in the Americas,with most species restricted to SouthAmerica (Delacour & Amadon 1973, delHoyo 1994). Despite their important role inforest dynamics as dispersers of seed plants,most cracid species remain poorly known(Strahl & Grajal 1991).
Sergio Henrique Borges, ORNITOLOGIA NEOTROPICAL 10: 77-80, 1999