I had a calf born in early April. Yesterday he was seperated by himself from the rest of the herd. I brought him in because I thought he was sick. He was placed ina a pen with some bottle calves I have and started eating grain and hay with them. He didn't fuss at all nor did his Momma. Could she have weaned him naturally. At max, she would be about 4 months bred. What do you think?