A year ago, Mohammad Arif found an injured Sarus crane in a field on his farm in India's Uttar Pradesh state. Its right leg was completely broken and it was bleeding heavily, he said. He took the bird home and nursed it back to health, using some home remedies. After six weeks, when it could again stand on its feet and its injuries had healed, he thought the crane would return to the wild. But instead, it stayed on -- the crane rarely leaves his side, as this video shows. It always roams free - they don't tie it up or cage it. "I just performed my duty as a human being", he says. "When I saw it injured, I felt that I should help it."