Sitnikovsky nature reserve — established in 1987 in Borsky District, 2 km south-east of Kiselikha station, on the watershed of the Vezloma and the The Linda River.
Area — 2.1 thousand hectares.
It lies on the water-filled pits of a worked-out peat deposit.
Here is the largest colony of gulls in continental Europe, numbering about 65 thousand birds, including a species rare for our region — the herring gull.