I'm watching a movie called On the Ice, about two Native American boys unintentionally kill a third one. They were out on the ice to go seal hunting and were wearing white parkas. At first, I thought those were only worn by soldiers, not thinking that the seals would not be able to see them, I gather. My real question concerns what non-snow hunters wear. Some wear camo and some have orange safety vests. Are some animals, but not others, not sensitive to that kind of color? Birds, yes/no, deer, yes/no? My wife, a painter, participated in a conference a few years ago on camouflage. I was surprised to learn it has a very interesting history, especially with ships and tanks.