We know the two species of the genus Argusianus A. argusianus and A. greyi , collectively as the Great Argus Pheasant. To be clear, it's been fairly well established for more than a decade that the Great Argus is not actually a pheasant at all. The Great Argus is actually a very enigmatic form of peafowl and that peafowl are not pheasants . What is more, the former family Phasianidae has been demonstrated to be an artificial assemblage. Many of the species that we call pheasants are only very distantly related to one another. Many of which like the Peafowl represent their own monophyletic lineages . The once all-inclusive pheasant family is comprised of many different monophyletic lineages without a common recent ancestor. Consequently, the Pheasant family is polyphyletic . The Great Argus is ancient and isolated even amongst its peafowl allies. Its closest relative is the Crested Argus which is as distinctive genetically and ecologically from the Great Argus as the Congo Peafowl is from its closest relative the typical Peafowl- the trained species . Perhaps the only time that the Great Argus really resembles a peafowl (in my opinion) is during the post juvenile stage - the six or eight months between juvenile plumage and that of the subadult. For many Great Argus this phase may last for over a year. Those on an optimal diet develop more rapidly. It requires an incredible amount of energy to grow out its disproportionally immense integument . Yeah- that's a big word where another word could have sufficed. But not really - as the Great Argus is continually rebuilding and regenerating its cellular structure. The bird with the best territory has the best source of nutrition and he'll be in the best shape all the year long. If the animal manager chooses to remain ignorant about biological definitions of the term integumentry system , they will represent yet another individual that killed more birds than they managed to produce. This Great Argus is moulting badly due to nutritionally deficient diet. This is necessary for the species tends to produce at least two clutches a year. There is a helper system amongst the young offspring and the fathers are responsible for the well-being of the multi-generational brood while the mother is off setting. Male Great Argus tolerate one another quite well. Females tend to not tolerate one another at all. This is also true of Congo Peafowl and Peacock Pheasants. This phylogeny of the Argus/ Peacock family tree is monophyletic. The clade of four genera, Rheinardia ( Crested Argus), Argusianus ( Great Argus) Afropavo ( Congo Peafowl) and Pavo ( Typical Peafowl) is genetically isolated and unique enough to warrant classification within their own family the Pavoninidae . But that is my very biased if somewhat educated opinion. That's all an aside. Clifton9 wanted to talk about the Great Argus so here is a thread to explore this fascinating deep forest peafowl. This is my oldest Great Argus male Mr. Chuckles Clifton9 please post your illustration of the Great Argus adult male in flight.