Peafowl, junglefowl and most of the subtropical pheasant genera have very different nutritional requirements from typical Palearctic genera. The Himalayan monal ("Lophophorus impejanus") has been observed digging in the rotting wood of deadfall in a similar manner to woodpeckers to extract invertebrates, even bracing itself with aid of its squared tail. The cheer pheasant ("Catreus wallichi"), crested argus ("Rheinardia ocellata"), the crested partridge ("Rollulus roulroul") and the crested guineafowl ("Guttera pucherani") are similar ecologically to the Himalayan monal in that they too forage in rotting wood for termites, ant and beetle larvae, molluscs, crustaceans and young rodents.