Animal Sounds -- See Also the narrower term Birdsongs Here are entered works on the calls or songs produced by birds. Musical compositions having birds as their subject are entered under Birds--Songs and music. Works on the process of sound production by birds are entered under Birds--Vocalization.
--subdivision Variation under individual animals and groups of animals, e.g. Fishes--Variation
Animal Vocalization -- See Sound production by animals Here are entered works on the anatomy, physiology, and behavior involved in the production of sound by animals. Descriptions, notations, or recordings of the sounds made by animals are entered under Animal sounds. Works on the calls used by humans to attract or lure animals and which may imitate characteristic animal sounds are entered under Animal calls. --subdivision Vocalization under individual animals and groups of animals, e.g. Mammals--Vocalization; Cattle--Vocalization