The Done by Deer Sensory Rattle With Teether Powder Birdee is a good companion for your little one with sore gums. The sweet Birdee will keep your baby entertained with all its sensory features. The sensory rattle has a cute rattle sound, different textures to explore and the wings make a nice crinkle sound when touched. Stimulate your baby's senses with these sensory features and help soothe the itchy gums.