About Iodopleura isabellae Parzudaki, 1847
The white-browed purpletuft (Iodopleura isabellae Parzudaki, 1847) measures 11 to 12 cm (4.3 to 4.7 in) in length and weighs approximately 20 g (0.71 oz). The sexes have almost identical plumage. This species has long wings, a short tail, and a wide bill with a hooked tip. Adult individuals have white lores, a white stripe behind the eye, a white "moustache", and a white throat. The rest of the head, along with the back, wings, and tail, are blackish brown. A distinct white band is present on the rump. The underparts are mostly white, with dusky brown sides and dusky bars on the flanks. Males have a small tuft of violet feathers on the upper flank, while females have white tufts in this same position. Both sexes have a dark brown iris, a black upper mandible (maxilla), a lead-gray lower mandible, and dark lead-gray legs. Juveniles have white tips on their dark feathers. This species is a native bird of the Amazon Basin. Its range extends from the southeastern third of Colombia, south through eastern Ecuador and eastern Peru; from there it extends east into Amazonas state of southern Venezuela, across Amazonian Brazil to the Atlantic coast in Pará and northern Maranhão, south to northern Goiás, and into far northern Bolivia. It inhabits the canopy and edges of humid evergreen forest and secondary woodland. Its maximum observed elevation varies by region: it reaches 500 m (1,600 ft) in Colombia and Ecuador, 850 m (2,800 ft) in Peru, and 200 m (700 ft) in Venezuela, where it "probably higher" than this elevation.
