Clockwork Hen

A wind-up brass hen walks the farmyard picking up eggs. Every egg follows right behind her and hatches ten steps later into a real chick - white, yellow, brown or black - that joins the line. Walk into the fence, a hay bale or your own brood and the yard is over. Calm, brisk and swift yards, a collection of the hen's fittings in four metals, and a daily yard that is the same eggs for everyone.