He employed a similar technique for "Jenny Wren". Birdworld includes an Underwater World aquarium and the Jenny Wren children's farm. Sloppy himself becomes friendly with Jenny Wren, whose father has died. Affectionately remembered by alumni as "Jenny Wren," she laid the foundations of a modern library. Lizzie Hexam becomes the lodger of a doll's dressmaker, a disabled teenager nicknamed "Jenny Wren". James appeared as Jenny Wren in the 1976 BBC adaptation of Dickens's "Our Mutual Friend". Also, "Fine Line" and "Jenny Wren" appeared on singles with their running time shortened. Jenny Wren Farm is a children's petting zoo, and houses a number of farm animals. A second single, "Jenny Wren", reached No. 22 in the UK that November.