The back is brown .
The head is pure grey or pale grey tinged brown , while most subspecies have a brown crown , which , however , is black in parts of central Brazil and in the Andean subspecies melanochrous and aspersiventer .
The back is brown and the head is pure grey or pale grey tinged brown , while most subspecies have a brown crown , which , however , is black in parts of central Brazil and in the Andean subspecies melanochrous and aspersiventer .