Strathtay and around Loch Lomond. According to the British Deer Society distribution survey 2007, they have increased in range since the previous survey in 2000, although the increase in range is not as spectacular as for some of the other deer species. A significant number of the European fallow deer in the Forest of Dean and in Epping Forest are of the black variety. One particularly interesting population, known as "long-haired fallow deer", inhabit Mortimer Forest on the England/Wales border; a significant part of the population has long body hair with distinct ear tufts. A historical herd is at Phoenix Park in Ireland, where a herd of 400–450 European fallow deer descends from the original herd introduced in the 1660s. New Zealand From 1860, European fallow deer were introduced into New Zealand. Significant herds exist in a number of low-altitude forests. South Africa European fallow deer are popular in the rural areas of KwaZulu-Natal for hunting purposes, in parts of the Gauteng Province to beautify ranches, and in the Eastern Cape where they were introduced on game farms for the hunting industry because of their exotic qualities. European fallow deer adapted extremely well to the South African environment with access to savanna grasslands and particularly in the cooler climate ranges such as the highveld. Sweden One noted historical herd of European fallow deer is located in the Ottenby nature reserve in Öland, where Charles X Gustav of Sweden erected a dry stone wall some 4 km long to enclose a royal fallow deer herd in the mid-17th century; the herd still exists as of 2006. United States In recent times, European fallow deer have been introduced in parts of the United States. A small feral population exists on one barrier island in Georgia. Fallow deer have also been introduced in Texas, along with many other exotic deer species, where they are often hunted on large game ranches. In Pennsylvania, European fallow deer are considered livestock, since no feral animals are breeding in the wild. Occasional reports of wild European fallow deer in Pennsylvania and Indiana are generally attributed to escapes from preserves or farms. A herd of white European fallow deer is located near Argonne National Laboratories in northeastern Illinois. A small herd of 15 mostly white European fallow deer resides at the Belle Isle Nature Zoo on Belle Isle in Detroit, Michigan. Until the turn of the 21st century,