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 .
Flamecrest
The flamecrest is a small perching bird, resembling a warbler. Its length is only and weight about 7 g, making it is the smallest of all Taiwan's endemic bird species, and the smallest and most colourful member of its family in the world.