By Feb. 17, 36 red-headed bare-necked cranes had flocked to Tram Chim Bird Sanctuary in the Mekong delta province of Dong Thap.

Director of the sanctuary Nguyen Van Hung said that the cranes, which are listed in the World’s Red Book of Threatened Species, returned to the sanctuary to find their available food – nan glass.

With a system of swamps, grass-plots and criss-crossing canals, the 7,500 ha Tram Chim has become an ideal habitat for more than 140 species of plants, 40 species of fish, pythons, turtles, eels and snakes, more than 250 species of birds, including 32 rare species such as pelicans, storks, herons, spot-billed ducks, water chickens - and, of course, red-headed, bare-necked, also known as sarus, cranes./.