Tawny-bellied Hermit

The tawny-bellied hermit is about 14 cm (5.5 in) long and weighs 5 to 7 g (0.18 to 0.25 oz). This medium-sized hermit's upperparts are olive green, and males have reddish-orange uppertail coverts. The central tail feathers of both sexes are long and white and the rest are dark with bright orange ends. The nominate subspecies has an orange throat, belly, and undertail coverts; the throat and chest of P. s. columbianus are dark brown. Both sexes have an obviously decurved bill with the female's being more curved than the male's. Voice: The tawny-bellied hermit's song is "a continuous series of single, high-pitched, almost insect-like 'tsi' calls". Several males often sing at a lek. The species also gives flight calls of "an upslurred 'peeet!'" and "a soft 'stip'".