This observation is the first recorded occurrence of a fully antlered buck at this location. The photograph was taken on an abandoned ranch in The Colony, Texas.
Here is what Wikipedia has to say about White-tailed Deer:
In western regions of the United States and Canada, the white-tailed deer range overlaps with those of the black-tailed deer and mule deer. White-tail incursions in the Trans-Pecos region of Texas has resulted in some hybrids. In the extreme north of the range, their habitat is also used by moose in some areas. White-tailed deer may occur in areas that are also exploited by elk (wapiti) such as in mixed deciduous river valley bottomlands and formerly in the mixed deciduous forest of Eastern United States. In places such as Glacier National Park in Montana and several national parks in the Columbian Mountains (Mount Revelstoke National Park) and Canadian Rocky Mountains, as well as in the Yukon Territory ( Yoho National Park and Kootenay National Park), white-tailed deer are shy and more reclusive than the coexisting mule deer, elk, and moose.