In biology, the range of an species is the geographical area within which that species can be found.
The term is often qualified:
sometimes a distinction is made between a species' native range and the places to which it has been introduced by human agency (deliberately or accidentally).
for species which are found in different regions at different times of year, terms such as summer range and winter range are often employed.
for species where only part of their range is used for breeding activity, the terms breeding range and non-breeding range are used
when discussing mobile animals, the species' natural range is often discussed, as opposed to areas where it occurs as a vagrant.
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