Chico’s Tyrannulet

Chico's tyrannulet (Zimmerius chicomendesi) is a Near Threatened species of passerine bird in the family Tyrannidae, the tyrant flycatchers. It is endemic to the area of Rio Madeirinha in Brazil. == Taxonomy and systematics == Chico's tyrannulet was first described by the ornithologists Bret Whitney and colleagues in 2013 and given the binomial name Zimmerius chicomendesi. Its common name and specific epithet honor the Brazilian environmentalist Chico Mendes. Taxonomic systems began recognizing the new species in 2016. Chico's tyrannulet is monotypic. It appears to be most closely related to the Mishana tyrannulet (Zimmerius villarejoi). == Description == Chico's tyrannulet is about 10 cm (3.9 in) long; one male weighed 5.5 g (0.19 oz). The sexes have the same plumage; males are larger than females. Adults have an olive-green crown, back, and rump. Their face is slightly paler and more green. Their wings are dull blackish with a faint olive cast. The wing coverts have yellow edges and the secondaries and outer primaries have thinner yellow edges. Their tail is dull blackish with a faint olive cast. Their throat is pale green, their breast green washed with yellow, and their belly and undertail coverts bright yellow. They have a white iris…