stand facing the leader.
Leader says :"Ducks Fly" and he/she flaps arms as wings.
Players follow his/her motions.
Then the leader may say :"Birds Fly".
If the leader says "Pig's Fly" or any other animal that does not fly, the players drop their arms and must stand still.
Those who keep flapping are out and get to observe.
The leader should keep on flapping for everything he/she says. Try to confuse the masses!
When the leader is flapped out...pick another leader.
Can you say Simon Says with wings!