Arrowhead Piculet

The arrowhead piculet is 9 to 10 cm (3.5 to 3.9 in) long and weighs 11 to 16 g (0.39 to 0.56 oz). Adult males have a black cap with a red patch on the forehead and white spots on the rest of it. Their face is mostly dark brown with white tips on some feathers and a white line behind the eye. Their upperparts are olive brown whose feathers have blackish wedge-shaped centers, a very thin black bar at their tip, and a white spot just inside the tip. Their rump is plainer but their undertail coverts can have dark bars. Voice: The arrowhead piculet makes a "eries of c. 14 thin notes, 'it-it-it-it...', or 'kee kee kee'." It also makes a "loud twitter" during agonistic encounters.