White-banded Tyrannulet

The white-banded tyrannulet (Mecocerculus stictopterus) is a species of bird in subfamily Elaeniinae of family Tyrannidae, the tyrant flycatchers. It is found in Bolivia, Colombia, Ecuador, Peru, and Venezuela. == Taxonomy and systematics == The white-banded tyrannulet has three subspecies, the nominate M. s. stictopterus (Sclater, PL, 1859), M. s. albocaudatus (Phelps, WH & Gilliard, 1941), and M. s. taeniopterus (Cabanis, 1874). == Description == The white-banded tyrannulet is 12.5 to 13 cm (4.9 to 5.1 in) long and weighs 8 to 11 g (0.28 to 0.39 oz). The sexes have the same plumage. Adults of the nominate subspecies have a medium gray crown. They have a white supercilium, a blackish stripe through the eye, and a faint dusky crescent behind the ear coverts on an otherwise whitish face. Their upperparts are dark brownish olive. Their wings are dark dusky with bright yellow to ochraceous edges on the flight feathers. Their wing coverts have wide pure white tips that show as two bars on the closed wing. Their tail is dusky olive. Their throat is grayish white, their breast grayish white with a darker grayish wash, their belly whitish, and their undertail coverts pale yellow. Subspecies M. s. albocaudatus differs…