This animation despite having cartoons birds is not based on children's book. 2017 film is more a philosophical tale of what could be with one character being a narrator with furry legs. There are famous well known voice of Jeremy Irons and Alicia Vikander. The tale is based on a Attar of Nishapur's "The Conference of the Birds" the free adaptation is created by a British independent firm. The images can be a bit jarring and the story requires you to use your brain a lot. I found it more like a rational paper at uni. It really helps if you know 'Birds Like Us' (Bosnian: Ptice kao mi; Turkish: Kuslar Bizim Gibi); this animated fantasy adventure film directed by Faruk Šabanovic and Amela Cuhara. It was only distributed in Bosnia and Herzegovina, Turkey, United Kingdom, United States and Qatar and had hardly any promotion.