BioAcoustica is a free, open repository of wildlife sound recordings from the Natural History Museum, London.
Taxonomic index of the BioAcoustica collection
Acoustic and biological measurements in the BioAcoustica collection
Recording annotations from ann-o-mate
The specimens that recordings are of, from the collections
Krause, Bernie L. (2015). Voices of the Wild. Yale University Press.
Where the specimens that recordings are of were collected, not where the sound was recorded