/**
 * Write a description of class Penguin here.
 * 
 * @author (your name) 
 * @version (a version number or a date)
 */
public class Penguin extends Bird
{
    public Penguin (double weightArg)
    {
        super (weightArg, "fish");
    }
    
    public String kind ()
    {
        return "A Penguin";
    }
    
    public boolean canFly()
    {
        return false;
    }
    
    public boolean canSwim()
    {
        return true;
    }
}