The blue-headed macaw or Coulon's macaw ("Primolius couloni") is native to eastern Peru (except in north), north-western Bolivia (mainly in Pando), and far western Brazil (only in Acre). It has a total length of about 41 cm (16 in), making it a member of the group of smaller macaws sometimes known as the mini-macaws, which includes any species of macaw with a total length of 50 cm (20 in) or less. As in all macaws, its tail is long and pointed and the bill is large and heavy.