Scaly-headed Parrot  

(Pionus maximiliani)

 

 Scaly parrot

 

It is found in eastern  Brazil, central and eastern  Bolivia,  Paraguay, and northern  Argentina. It is found in a wide range of wooded habitats, from humid subtropical forest to arid  Caatinga. It is fairly common throughout a large part of its range. It is typically seen in pairs or small flocks. The scaling to the head for which it is named is typically far less distinct than the bright red undertail  coverts  (a feature found in all members of the genus  Pionus).

In Brazil, they are called  cocotas  or  maritacas  (from mbaé’taka,  tupi  for “noisy bird”)

 

Pic from www.jboyd.net

Info from www. wikipedia.org