Calves and cows

I'm on a small roll of photographing baby animals; here are some calves and their mothers enjoying the Sun:

In my observations, cows lie down on their stomachs more than horses lie on theirs and I think it's amusing to see a cow lie slumped across the ground on her side! Each cow was content with her spot in the field: not one of them showed any interest in coming to the gate to attempt to obtain food from me. When you're having a lovely time in the Sun, why move?