Whole herd of deer relaxing after being fed

Deer are most vulnerable to predators when they are drinking, and going to the bathroom. And, because of that, deer have a digestion system that does not require much water, nor do they have a lot of excrement because they have a four-chambered stomach. The first chamber, called the rumen, is for storage. The rumen allows for the deer to gather a lot of food at once and then digest it later. The deer find a safe place to eat, and then bring the food back up into their mouth and chew it again (chewing their cud). I just fed them, and they are now relaxing and getting settled down so they can regurgitate their food and enjoy!