Wolf Eagle, Dall sheep rams in the Chugach Mountains don't grow full-curl horns until age 7 or 8. Most rams don't live much longer than that. After the breeding season, which is in early winter, a large ram's fat reserves are seriously depleted and during a harsh winter the older rams are among the first to die of starvation and other natural causes. There are several ways to limit the number of sheep shot during a hunting season; however, one of the best is to restrict the harvest to full-curl sheep because they are a very small segment of the total population, they are the sex-age group most likely to die overwinter and, yes, some hunters like to hang a trophy on the wall. If you can come up with a fairer way to limit the harvest, let me know. Also, Dall sheep are among the tastiest of wild creatures and responsible hunters (i.e., most hunters) carry all the meat off the mountain and are happy to have it.