Yellow-winged Vireo

The yellow-winged vireo, or Carmiol's vireo, (Vireo carmioli) is a small passerine bird in the family Vireonidae, the vireos, greenlets, and shrike-babblers. It is found in Costa Rica and Panama. == Taxonomy and systematics == The yellow-winged vireo was originally described in 1866 as Vireo carmioli, its current binomial. Its specific epithet and alternate English name honor "Mr. Julian Carmiol, who has been so indefatigable in developing the ornithology of Costa Rica". The yellow-winged vireo is monotypic. == Description == The yellow-winged vireo is 11 to 11.5 cm (4.3 to 4.5 in) long and weighs about 13 to 15 g (0.46 to 0.53 oz). The sexes have the same plumage. Adults have a gray-green crown. A whitish to buffy yellow area above the lores and eye-ring give the appearance of spectacles. Their nape and upperparts are dull greenish. Their wing coverts are dark greenish gray with wide whitish to pale yellow tips that show as two wing bars. Their primaries and secondaries are blackish gray with wide yellow-green edges. Their rectrices are blackish gray with wide greenish yellow edges on the outer webs. Their throat is yellowish white, their breast and belly yellow with yellowish green sides, and their vent…