URL copied Image Source : AP Health workers in protective suits prepare to bury birds after culling them following reports of bird flu in New Delhi. A dead owl in the Delhi zoo has been found to have been infected with bird flu, officials said on Saturday. "The zoo witnessed the death of a brown fish owl in its captivity. Its cloacal, tracheal and ocular swabs were sent to the animal husbandry unit of the Delhi government for serological examination," zoo Director Ramesh Pandey said. The samples were found positive for H5N8 avian influenza virus under real-time RT-PCR test done by ICAR-National Institute of High Security Animal Disease (NIHSAD), Bhopal, on Friday, he said.