Tuntunir Boi is a book by Upendrakishore Raychowdhury published in 1911. Dwelling around the tales of a 'Tuntuni' or a Tailor bird and other animals and human beings, 'Tuntunir Boi' is one of the finest representatives of Children's literature ever written in the Bengali language. Instances of talking birds and animals abound in our folk lores. Upendra Kishore culled out selectively from these oral tales, added some elements and created an end-product that was uniquely his.