The Long-tailed silky flycatcher (Ptilogonys caudatus), is blue-grey and yellow and occurs only in the mountains of Costa Rica and western Panama. The male has much brighter colours. The female is 21 cm long and generally duller than the male, with a darker grey forehead, olive body plumage and a shorter, duller black tail. It feeds on berries, any small insects, fruits, vegetables. The silky-flycatchers are related to waxwings, and like that group have a soft silky plumage.