The white calf was produced when White Cloud mated with her first male calf , a normally brown - colored bison .
It is not known for sure whether or not White Cloud 's white calf is also a true albino .
The white calf was produced when White Cloud mated with White Cloud 's first male calf , a normally brown - colored bison .
It is not known for sure whether or not White Cloud 's white calf is also a true albino .