New Zealand stock has been derived from various sub-species. They have repeatedly been introduced into New Zealand since 1842. Most of our birds resemble the ring–necked pheasant from China, torquartus, especially in having a broad white neck ring.
There are about 50 species of pheasants. Practically all of them are native to Central Asia, Ukraine, and China. They have been introduced and widely established in various areas. Romans brought pheasants into Europe. According to mythology Argonauts took them from the river Phasis in Colchis. Egyptian Pharaohs kept Pheasants and Alexander the Great brought them to Greece from Asia.