public ModelDuck()
{
flyBehavior = new FlyNoWay();
quackBehavior = new Quack();
}
public ReadheadDuck()
{
flyBehavior = new FlyWithWings();
quackBehavior = new Quack();
}
public MallardDuck()
{
flyBehavior = new FlyWithWings();
quackBehavior = new Quack();
}
