A new relative?!

It has been thunder half the day today. A beautiful rainbow was seen when the thunder was about to end. (See extra blip)
We live out on the countryside. The farmer we have as neighbour have moved his cows and calves next to our house.
When Bruno-boy and I was out for a walk this evening we got company....a small calf started to bellow and follow us. Perhaps the little one thought Bruno-boy was some kind of relative?!