Siliguri, Feb. 2: The Kulik bird sanctuary and the Farakka barrage figure in a list of 135 wetlands drawn up by the Bombay Natural History Society for their protection under an international treaty. The BNHS has said in a study that all the 135 waterbodies should be declared Ramsar sites under the Convention on Wetlands of International Importance. Eighteen countries had taken part in the first international convention on wetlands in Ramsar, Iran, in 1971 and signed a treaty for the conservation of waterbodies. India joined the convention in 1982 and today, the number of signatories is 160. The BNHS has advocated that the Kulik sanctuary and the Farakka barrage should be enlisted as Ramsar sites, considering that both the sites are known to be important waterfowl habitats.