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 .
Little sparrowhawk
The little sparrowhawk ("Accipiter minullus") is a species of Afrotropical bird of prey in the family Accipitridae. It is the smallest member of the genus "Accipiter" and forms a superspecies with the red-thighed sparrowhawk ("Accipiter erythropus").