Contrary to expectations, the number of birds visiting Pong Dam wetland, one of the largest manmade wetlands in North India, has declined by about 10 per cent this year.

During a two-day census of the waterfowl species (birds that depend on water bodies for roosting and feeding), 119,500 birds of the 103 species were spotted in the wetland in Kangra district, wildlife officials said on Thursday.