Fans of the movie Chicken Run may wonder if the birds at Tai Hung are hatching fantastic escape schemes along with eggs. They're everywhere, these hapless birds -- clucking inside coops, strutting on the grass, fleeing wild-eyed children. The frowsy white hens and proud orange roosters spend most of their time in their pens pecking at feed. Ducks abound, relishing the occasional rain shower. Only the quails and spectacular pheasants, crammed into small cages, seem listless. Young chickens sell for $1.39 a pound. "You taste one and you can tell the difference from a supermarket," says Cathy Van Tai, Tai Hung's owner.