Birds-of-paradise are to birds what unicorns are to horses, but in 39 species-specific ways. Birds-of-paradise come with beautiful accessories and special hats, like the super deluxe version of your backyard birds. They also make strange noises and have extremely cool names, like Growling Riflebird and Crinkle-collared Manucode. You'll meet the entire family in the Birds-of-Paradise film project out of Cornell University, which has catologued all 39 species and learned about their fancy habits. The exhaustive endeavor undertaken by Cornell Lab scientist Ed Scholes and National Geographic photographer Tim Laman took eight years and eighteen expeditions.