Turn the aerator housing counterclockwise and remove it from the faucet. Pull the O-ring off the tip of the faucet spout with your finger. The O-ring prevents leaking between the housing and the faucet. Set the O-ring in a safe place until you are ready to reinstall the housing.
After that, they are referred to as yearlings or stirks if between one and two years of age. A castrated male is called a steer in the United States; older steers are often called bullocks in other parts of the world but in North America this term refers to a young bull.
Born in the Grand River Valley in what is now South Dakota, Sitting Bull, or Tatanka Yotanka, received early recognition from his tribe as a warrior and man of vision. During his youth he joined in the usual tribal raids for horses against traditional enemies such as the Crow and Assiniboin.