burungKOLIBRI adalah burung kecil dengan panjang 6,4 cm dan berwarna cerah yang sebagian besar hidup di Amerika Utara dan Amerika Selatan. Seekor kolibri mempunyai sekitar seribu bulu yang bergemerlapan sehingga dapat memantulkan dan memencarkan sinar warna - warni yang dapat berubah ketika burung bergerak seperti minyak pada air. Ada lebih dari 300 spesies burung kolibri hidup di dalam wilayah hutan Amazon, Amerika Selatan. Sedangkan kolibri jenis Sword Billed, ensifera ensifera hidup di bagian barat hutan pegunungan Andes.

Hummingbirds are New World birds that constitute the family Trochilidae. They are among the smallest of birds, most species measuring 7.5–13 cm (3–5 in). Indeed, the smallest extant bird species is a hummingbird, the 5-cm bee hummingbird weighing less than a U.S. penny (2.5 g). They are known as hummingbirds because of the humming sound created by their beating wings which flap at high frequencies audible to humans. They hover in mid-air at rapid wing-flapping rates, typically around 50 times per second, allowing them also to fly at speeds exceeding 15 m/s (54 km/h; 34 mph). Hummingbirds have the highest metabolism of any homeothermic animal. To conserve energy when food is scarce, and nightly when not foraging, they go into torpor, a state similar to hibernation, slowing metabolic rate to 1/15th of its normal rate.