Long-tailed Silky-flycatcher

The long-tailed silky-flycatcher (Ptiliogonys caudatus) is a passerine bird in the family Ptiliogonatidae. It is found in Costa Rica and Panama. == Taxonomy and systematics == The long-tailed silky-flycatcher is monotypic. It and the grey silky-flycatcher (P. cinereus) are sister species. == Description == The long-tailed silky-flycatcher is 20 to 24.4 cm (7.9 to 9.6 in) long and weighs about 37 g (1.3 oz). It is a slender bird with a prominent crest and a long tail whose central pair of feathers extend beyond the others. Adult males have a gray forehead and crown and a thin yellow eye-ring. The rest of their face, their crest, and their neck are yellowish olive-green. Their back, rump, uppertail coverts and upperwing coverts are bluish gray. Their flight feathers and tail are black with most tail feathers having a large white patch in their middle. Their throat is grayish olive-green and their breast and upper belly a slightly paler olive-green than their back. Their lower belly, sides, and flanks are yellowish olive-green and their undertail coverts bright yellow. Adult females are overall duller than males and have a somewhat shorter tail. Their head, neck, and crest are a paler yellowish olive-green than the…