Nice looking place and good looking cattle. We have several black cows with the reddish places on them this summer. I have read and I believe it was on this cattle forum , that it is caused by a copper deficiency or the sun. Must be the sun with mine. We have had very high temps here for the last month or longer and you can feel the sun burn your skin like never before when you go outside. We keep minerals with copper in them out at all times, so I cannot believe it is a copper deficiency.
Enjoyed your pictures. Thanks for sharing.