The Macaulay Library archive, world’s largest archive of animal sounds, has an extensive organized and documented collection of birds’ recordings and associated videos. It is an important resource for anyone interested in the sound of the natural world. This collection could be utilized for scientific studies on how animals communicate and express themselves. It could also be used to provide concrete sounds for backgrounds, illustrations, or to be incorporated in musical settings. Needless to say, that these sounds are so soothing that they could simply be used "as is," just for esthetic purposes. Unfortunately, more and more species became extinct. These cataloged sounds may also preserve sounds that sadly may disappear from the face of the earth.