Do raccoons whistle

Scientists have determined that raccoons have a vocabulary of over 51 various vocalizations, including a "whoop-whoop" like sound, whistle, snarl, growl & grunt, hisses, scream and whinny. Baby raccoons make purring, chittering, cooing or crying sounds of varying intensity depending on their level of stress or contentment. When startled or frightened adults may let out a bark not unlike that of a dog.