Brothers Mohammad Nadeem and Mohammad Saud, run one of the world's biggest hospitals dedicated to predatory birds in the world, which is located in Delhi’s Wazirabad. Here a kite, which was recently operated upon, recovering in the bird hospital (Credit: Vikas Choudhary/CSE)The bird hospital receives around 2,500 birds every year, one of which is this barn owl with injured wings, relaxing in the hands of Mohammad Saud. (Credit: Vikas Choudhary/CSE)Many birds that are treated in the hospital are injured by long threads or manjha used in kite-flying, which causes sharp cuts. This Egyptian vulture was one of them (Credit: Vikas Choudhary/CSE)Doctors treat a kite’s old wound to prevent further complications or diseases (Credit: Vikas Choudhary/CSE)This migratory black-eared eagle has cataract and cannot take flight, thus being bound to land. While there are many birds hospitals in the world, including a major one in Delhi, few cater to birds that have meat-based diets (Credit: Vikas Choudhary/CSE)This open cage houses many of the recovering birds treated at the hospital. Mohammad Saud calls it the final test for them: if the birds manage to reach the top opening, they are fully fit to fly away (Credit: Vikas Choudhary/CSE)