I loved this reference photo, it shows a beautiful Hereford cow with her young calf.  Often I have seen on ranch or farm pages on social media this same scene, in fact often the mother's hide the calves in tall grass and the farmer has to hunt them down.  

I first saw this photo on the page of Liddle Farms, taken by the owner.  He was gracious enough to allow me permission to use his photos and his beautiful cows as reference for paintings.