The average height of a Hawaiian Black Sheep at the shoulder is 21 to 31 inches for males and 20 to 27 inches for females. The rams weigh between 60 and 150 pounds (the females weigh half that). The big trophy is not only their tasty meat, but the male’s unusual and beautifully curved horns that range from 20 inches to 39 inches. These horns grow back, down, forward and out and are a milky brownish color.