婉转，清丽，高亢，鸟儿在枝头欢唱。世界自然纪录片之父爱登堡老爵爷讲述鸟类鸣叫对于种群的意义。 David Attenborough chooses seven of the most remarkable animal songs found in nature and explores the significance of these songs in the lives of their species.
演员：Travis Rice 杰里米·琼斯 Mark Landvik Ben Ferguson Eric Jackson Bode Merrill Victor de Le Rue Bryan Iguchi Shin Biyajima Pat Moore Mikkel Bang Cam FitzPatrick