Wanderlust World Wanderlust World There is no such thing as a white Siberian tiger in the wild. The premise of the question reflects a common misconception.
The Siberian tiger (Panthera tigris altaica), also called the Amur tiger, is the world's largest cat. Its native range is the remote temperate forests of far eastern Russia—Primorsky and Khabarovsk Krais—with a tiny population possibly crossing into northeastern China and North Korea. Its coat is orange to reddish-orange with dark brown (not black) stripes, adapted to the snowy, oak-and-pine forests of the Russian Far East.
White tigers are not a subspecies. They are Bengal tigers (Panthera tigris tigris) carrying a rare recessive gene (a mutation in the SLC45A2 gene) that inhibits pheomelanin production, resulting in a white coat with blue eyes and chocolate stripes. This mutation occurs in roughly 1 in 10,000 wild births—so rare that wild white tigers are virtually nonexistent today.
All living white tigers descend from a single male, Mohan, captured in central India in 1951. They exist only in captivity, often inbred, suffering health issues (crossed eyes, kidney problems, immune deficiencies). No white tiger has ever been documented in the Siberian tiger's range.
Media, entertainment, and poorly sourced websites often conflate "white tiger" with "Siberian tiger" because both are charismatic, snow-associated big cats. But biologically and geographically, they are distinct.
Bottom line: If you see a white tiger, it's a captive Bengal tiger with a genetic mutation—not a Siberian tiger, and not a wild animal.