Hummingbird
Hummingbirds are birds native to the Americas and constitute the biological family Trochilidae. They are among the smallest of birds, most species measuring in length. Indeed, the smallest extant bird species is a hummingbird, the bee hummingbird weighing less than .
Tiny sunbird
The tiny sunbird is the smallest species in the genus. The adult male has a metallic green head, back and throat, dark brown wings, a metallic blue rump and a black tail with a purplish-blue sheen. It has a narrow blue breast band above a wider scarlet breast band, lemon-yellow pectoral tufts and a dark olive belly. The adult female has an olive-brown head and upper parts, dark brown wings and dark brown tail. There is an olive-yellow supercilium over the eye, the throat is grey and the underparts are olive washed with yellow. The eyes in both sexes are dark brown and the beak and legs are black. The juvenile resembles the female.