Tacky is an odd bird who marches to the beat of his own drummer. He's something of an eccentric, which wouldn't be a problem if all the other penguins weren't such . . . conformists. Helen Lester and Lynn Munsinger have teamed up to tell Tacky's story, about the day when some hunters come to the penguins' Nice Icy Land, and how Tacky's individuality saves the day