Apus affinis (Little Swift) is a species of birds in the family swifts. They are found in the palearctic, the indo-malayan realm, australasia, and Afrotropics. They are diurnal.
Definition: The largest scale biogeographic division of the earth's surface based on the historic and evolutionary distribution patterns of plants and animals.
Definition: A group of species that exploit the same food resources, and/or use the same feeding or foraging methods. http://en.wikipedia.org/wiki/Guild_(ecology)