About Psilopogon duvaucelii (R.Lesson, 1830)
The black-eared barbet, scientifically named Psilopogon duvaucelii (R.Lesson, 1830), has the following physical characteristics. Its plumage is olive-green, with a blue throat and blue nape. It has a black beak, and a large black streak running between its eyes. It has red spots below the eyes, and each red spot is surrounded by a ring of black. This species measures 16–17 cm (6.3–6.7 in) in total length, and has a body weight that ranges from 26.3–37 g (0.93–1.31 oz).