SCIENTIFIC NAME: Boissonneaua flavescens
The Buff-Tailed Coronet is a medium- sized hummingbird with distinguishing characteristics: short bill, glittering green coloration, and buffy color under the remiges (flight feathers) and rectrices (tail feathers).
Its average size is 5.2 – 5.3 inches with a bill length of 1.8 – 2 cm (0.7 – 0.8 inches).
It has only a slight sexual dimorphism.
Females are scaled with white feathers mostly throughout the chin and throat, and some on the belly. Prominent feather colorations are iridescent green with darker wing tips, and buffy hues under the wing and tail feathers.
There is an obvious white post ocular spot on each side. Puffy white “boots” are present at the thighs, an orange tuft at the shoulder, and a short, dark bill.
The vocalization of the male is a repetitive “chip” noise. This song is usually used when they are perched in open areas of the sub-canopy, being within suitable distance from other hummingbirds.
The song has also been recorded at feeders with multiple hummingbirds present.
Occupies many types of habitat, including cloud forest, elfin forest, and páramo. It occurs at 1500 to 2400 meters in elevation.
Colombia, Ecuador, and Venezuela.