About Zimmerius chrysops (P.L.Sclater, 1859)
The golden-faced tyrannulet, scientific name Zimmerius chrysops (P.L.Sclater, 1859), measures 10.5 to 11.5 cm (4.1 to 4.5 in) in length and weighs 7.7 to 10.6 g (0.27 to 0.37 oz). Males and females have identical plumage. Adult individuals have a bright yellow forehead, supercilium, and area surrounding the eye, alongside a dark stripe running through the eye, set against an otherwise yellowish white face. Their crown, back, and rump are bright olive. Their wings are dusky, with bright yellow edges on the coverts and flight feathers. Their tail is dusky. Their throat is yellowish white, while their breast, flanks, and belly are a dull whitish shade. They have a brown or brownish gray iris, a small, rounded, blackish bill, and gray legs and feet.
This species is distributed across the Andes of northwestern Venezuela, the Serranía del Perijá along the Venezuela-Colombia border, all three ranges of the Colombian Andes excluding the southwesternmost Nariño Department, and the full length of the eastern Andean slope of Ecuador, extending into Peru as far as the Department of San Martín. It inhabits the interior and edges of humid montane forest, secondary woodland, and semi-deciduous forest, and also occurs in coffee plantations and gardens. Its elevational range reaches up to 2,400 m (7,900 ft) in Venezuela, up to 2,300 m (7,500 ft) in Colombia, and up to 2,200 m (7,200 ft) in Ecuador. In Peru, it occurs between 1,000 and 2,450 m (3,300 and 8,000 ft) in elevation.
