The guineafowl are a family of birds in the Galliformes order although some authorities include the guineafowl as a subfamily Numidinae of the family Phasianidae. The guineafowl are native to Africa, but the Helmeted Guineafowl has been domesticated, and both feral and wild-type birds have been introduced elsewhere.This family of insect- and seed-eating ground-nesting birds resemble partridges but with featherless heads though both members of the genus Guttera have a distinctive black crest and the Vulturine Guineafowl has a downy brown patch on the nape. Most species of guineafowl have a dark grey or blackish plumage with dense white spots, but both members of the genus Agelastes lack the spots . While several species are relatively well known, the Plumed Guineafowl and the two members of the genus Agelastes remain relatively poorly known. These large birds measure from 40-71 cm in length and weigh 700–1600.
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