Animal Sounds Games to identify, recognize and associate the noises produced by different farm or wild animals. Activate your headphones or speakers to play these games. Learn animal onomatopoeias. Animal sounds are the vocalizations produced by animals in order to communicate with each other or with other individuals of their species. These sounds can be vocal, such as the bark of a dog or the moo of a cow, or non-vocal, such as the whistle of a bird or the roar of a lion. Animal sounds are essential to the survival of many species, allowing them to communicate important information about food location, reproductive status, danger and much more.