The scissor-tailed hummingbird (Hylonympha macrocerca) is a bird species in the family Trochilidae, the only member of the genus Hylonympha. It is found only in Venezuela. In Jamaica, the Red-billed streamertail is also known as the scissor-tail or scissors tail hummingbird. Its natural habitat is subtropical or tropical moist montane forests. It is threatened by habitat loss. It was formerly classified as a Vulnerable species by the IUCN. But new research has shown it to be rarer than it was believed. Consequently, it is uplisted to Endangered status in 2008.