A group of cowboys. some wearing yellow rain slickers, head out to herd mother cows and their calves to the Kahua Ranch coral to brand, innoculate and castrate them on a rainy morning in North Kohala, Hawaii. Despite the warm sea level temperatures in Hawaii, the weather is often brutal up country at 3,000 feet and higher where some of the best ranchland is. Winds can blow at 60 miles an hour or more and temperatures can drop into the low 40's.