In the course of making a regular survey of animals and plants in major sanctuaries across the country, scientists of the Biodiversity Institute under the State Academy of Sciences observed 20-odd black-winged stilts and their nests, eggs and young birds at reservoirs in Pidan Island, Sindo County and clarified their specific feature of inhabitation.

The black-winged stilt is known as living in America, southwestern Europe, Africa, South Asia, Southeast Asia, Australia and New Zealand.

The recent discovery of this bird's breeding place in the northwest coastal area of Korea proved again that the Sindo Migrants Sanctuary is rich in biodiversity and very favorable for migrants' inhabitation.

The sanctuary, located in the centre of the East Asian-Australasian Flyway, plays an important role in ensuring stoppage and breeding of migrants.

In particular, many water birds flying from the south to the north in spring would stay there.

More than 130 species of water birds including 14 endangered species like black-faced spoonbill, far-eastern curlew and swan goose are living in this sanctuary.