This is a traditional Chinese chase game, to be played outdoors. It is a good game to play with a mixed age-group.
One child is chosen to be the Hawk, and another the Hen. All the other children are Chicks, and line up behind the Hen, holding onto the clothes of the child in front of them.
The Hawk and the Hen face each other, and the Hawk now tries to catch the Chicks. The Hen protects her Chicks, holding out her hands and moving from side to side (with her Chicks swaying in a line behind her).
Any Chicks which are caught move over to stand behind the Hawk, and the line of Chicks closes up.