Olivaceous Greenlet

The olivaceous greenlet (Hylophilus olivaceus) is a species of bird in the family Vireonidae, the vireos, greenlets, and shrike-babblers. It is found in Ecuador and Peru. == Taxonomy and systematics == In the mid-twentieth century at least one author considered the olivaceous greenlet to be a subspecies of the scrub greenlet (Hylophilus flavipes). However, later work showed they are not closely related but that the olivaceous and ashy-headed (H. pectoralis) greenlets are sister species. The olivaceous greenlet is monotypic. == Description == The olivaceeous greenlet is 12 cm (4.7 in) long and weighs 11 to 13 g (0.39 to 0.46 oz). The sexes have the same plumage. Adults have a yellowish olive forehead. The rest of the top of their head and their upperparts, wings, and tail are dull olive-green. Their underparts are yellowish olive that is slightly lighter on the chin and a slightly brighter yellow on the belly. They have a whitish iris, a dull pink or brownish pink bill, and brownish pink legs and feet. == Distribution and habitat == The olivaceous greenlet has a disjunct distribution on the eastern slope of the Andes. It is found in Ecuador from Napo Province south almost to the Peruvian…