horses do eat a lot
I took some time out in late August and went to Kent, "The Garden of England". This was my backyard for some time. I was woken up every morning by the snorting and the galloping hooves.
Having spent some time with this lot, I learnt a thing or two about them. First, they are much gentler than I'd previously assumed. Horses are the true gentle giants. Extremely friendly creatures. Second , they don't like apples! What?! I tried for hours to no avail, they just refused to eat it. The storybooks lied! Third, they do eat - A LOT. They'd run around for a while, and just eat. All day - nom nom nom nom nom nom, until sunset, and beyond. Not even a thunder storm could interrupt their all day munching - they couldn't give two hooves about a bit of rainwater or lightning.