This is a random calf that lives in a field with his mother and other cows.
Ginga Densetsu Riki
When Akakabuto attacks, the big bear kills his mother and then the calf. The narrator says that Akakabuto didn't kill the mother cow because she was the one he wanted to hunt down. He killed her so she won't try to defend her calf who was the one he was after because calves were meatier than adults.