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 .
Lesser sand plover
The lesser sand plover ("Charadrius mongolus") is a small wader in the plover family of birds. The spelling is commonly given as lesser sand-plover, but the official British Ornithologists' Union spelling is "lesser sand plover". The genus name "Charadrius" is a Late Latin word for a yellowish bird mentioned in the fourth-century Vulgate. It derives from Ancient Greek "kharadrios" a bird found in ravines and river valleys ("kharadra", "ravine"). The specific "mongolus" is Latin and refers to Mongolia which at the time of naming referred to a larger area than the present country.