Plumbeous-crowned Tyrannulet

The plumbeous-crowned tyrannulet (Phyllomyias plumbeiceps) is a species of bird in subfamily Elaeniinae of family Tyrannidae, the tyrant flycatchers. It is found in Colombia, Ecuador, and Peru. == Taxonomy and systematics == The plumbeous-crowned tyrannulet was originally described as Pogonotriccus plumbeiceps. It was moved to genus Oreotriccus in the early twentieth century, and Oreotriccus was then merged into Phyllomyias following a 1977 publication. The plumbeous-crowned tyrannulet is monotypic. == Description == The plumbeous-crowned tyrannulet is about 11.5 cm (4.5 in) long. Males weigh about 11 g (0.39 oz) and females about 8 g (0.28 oz). The sexes have the same plumage. Adults have a gray crown and bright olive nape, back, and rump. Their lores and supercilium are white with a dusky stripe through their eye. Their lower face is pale gray or whitish. Their wings are dusky with yellow to yellowish white edges on most flight feathers and the ends of the coverts. Their tail is dusky olive. Their throat is grayish white, their breast and flanks yellow with an olive wash, and their belly bright yellow. They have a brown to gray-brown iris, a black bill with sometimes a brown or pinkish cream base to the mandible, and…