I *always* sing to my pets, because its SO much fun when they tilt their heads, listen carefully, and then sing back! I whistle *Mary had a little lamb* (the whole thing) to them, and then Popcorn whistles, in such a sqeaky voice *Mary had a little lamb........* and then messes up and adds his own personal birdie whistles. LOL Its HILARIOUS! Muffin listens and squacks back but she's not interested in whistling herself. Its so much fun to sing to birds especially because they copy you and sing back.