This hummingbird is so local and uncommon that sightings of it were infrequent for many years. It was re-found in the early 1990s and is now spotted regularly within its limited range, which consists of five fragmented populations on the Pacific slope of the Andes in north-central Peru.
The Gray-bellied Comet is more attractive than its plain-sounding name implies. In the right light, the upper sides of this large hummingbird shimmer with greens, blues, and bronzy-oranges. Males have a violet-blue throat (gorget), and both sexes have long tails similar to those of theSwallow-tailed HummingbirdandLong-tailed Sylph.