According to Leif, pheasants often die under these conditions with full crops. He also noted that even under the worst conditions, pheasants can usually scratch out a living on weed seeds and grains left in harvested fields. On rare occasions, however, pheasant deaths are associated with starvation. This usually results from a lack of natural food and can be compounded by ice or crusted snow covering food sources. Furthermore, pheasants moving to and feeding in open areas are more apt to be killed by predators.
Planning is the key to avoiding extensive pheasant losses during severe winters.
During the harsh winters, only those birds that can locate dense shelterbelts and an available source of food such as standing crops will survive. Behavior is an important factor in survival for pheasants. Leif said that sharp-tailed grouse, a native of the northern Great Plains, have developed a behavior that allows them to survive when pheasants may otherwise freeze. The grouse's igloo-like roost provides insulation from the cold and shelter from the wind. Pheasants generally use areas of grass for protection, which work well until they become entirely filled with snow.