Snowcap \Snow"cap`\, n. (Zo["o]l.) A very small humming bird ({Microch[ae]ra albocoronata}) native of New Grenada. Note: The feathers of the top of the head are white and snining, the body blue black with a purple and bronzy luster. The name is applied also to {Microch[ae]ra parvirostris} of Central America, which is similar in color.