大卫·爱登堡：歌声奇迹

婉转，清丽，高(gāo )亢，鸟儿在枝头(🔼)欢唱。世界自(🕸)然纪(jì )录(🕰)片之父爱登(dēng )堡老爵(🆖)爷(🥈)讲述(shù )鸟类鸣叫对于种群(qún )的(de )(😧)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.