Parrots mostly nest in tree-trunk hollows, but there are the species nesting on the ground, in holes, either biulding collective covered nests of branches and brushwood.
These circumstances allow to purpose the griffarrot one of probable inhabitants of Neocene savanna. To tell the truth, for this purpose it should be exception of too big number of "rules" of order Psittaciformes, but at change of an environment and extinction of "rules" (i. e. the majority of wood parrots) it is quite probable. In Neocene New-Zealandian descendant of kea parrot had became true bird of prey in ecosystem of these islands.
The griffarrot is large (weight up to 1,5 kg, wingspan up to 1,7 m, length of a body including tail up to 60 cm) a schooling bird. It lives in savannas and light forests by flocks up to 100 birds and more. The feathering of the male and the female does not differ with color, birds of both sexes are coloured in green with white feathers under wings (these spots are visible in flight), a tail is red. On sides of a head (from a beak up to an ear aperture), a throat and the top part of a breast there are no feathers, a skin is grey, around of eyes there is a dark blue ring. On a crown and a nape feathers are longer, than on a neck, forming the special kind of "crest" expressing an emotional condition of a bird. A beak is black with a narrow vertical white strip. The voice reminds a gnash and a scratch.
Parrots eat almost strictly food of an animal origin: dig insect larvae out of the ground, prey small vertebrates? attack little animals and birds, ravage bird nests. The powerful beak allows birds to crack even shells of little tortoises. Frequently they look for a carrion or prey of large savanna predators. Willingly eat semi-decomposed meat, gnaw cartilages and crush bones searching marrow. This species nests by groups in river precipices, dig out long holes (up to 2 meters of length, width up to 30 cm) by a beak and paws. It clutch there are 2 or 3 large eggs. At an attack of predator theses birds defend themselves by the whole flock, striking powerful impacts by wings and beaks.