The arrowhead piculet or Guianan piculet is a species of bird in subfamily Picumninae of the woodpecker family Picidae. It is found in Suriname and possibly French Guiana and Guyana.

Poecile is a genus of birds in the tit family Paridae. It contains 15 species, which are distributed across Europe, Asia, and North America; the European and Asian species are known as tits, and the N