With 46 inches of snow on the ground and wind drifted cornices  many times deeper%2C these bulls have moved onto windswept ridges. The  graze is poor%2C but they avoid burning energy plowing through deep snow to get at the graze below. Whatever their strategy by this time  in the winter they are burning more energy than they are taking in. The equation will kill some of them before spring.
With 46 inches of snow on the ground and wind drifted cornices many times deeper%2C these bulls have moved onto windswept ridges. The graze is poor%2C but they avoid burning energy plowing through deep snow to get at the graze below. Whatever their strategy by this time in the winter they are burning more energy than they are taking in. The equation will kill some of them before spring.