India, June 19 -- The National Zoological Park in Delhi launched weekly Sunday bird-watching walks on June 14 to promote public awareness about biodiversity conservation and avian documentation, officials said.

A zoo official, requesting anonymity, said the inaugural walk held last Sunday was attended by 23 people.

"The long-term duration of the walks will depend on the response received. We are holding these walks for passionate birders. Each walk will be guided by an ornithologist (a bird expert). We are compiling a list of ornithologists who have worked with the Delhi Zoo for this," said the official.

"During the walk, participants documented 33 bird species and observed over 100 individual birds across the zoo premises. The initiat...