Most south-western part of Ladoga lake with two group of islands - Zelentsi and Karedzhi.
All bird number are given for period 1961-1999 years as it were permanent observation here.
The map polygon is provided courtesy of the Spatial Database on Important Bird Areas of Russia 2014 (© Russian Bird Conservation Union, © Transparent World).
BirdLife International (2021) Important Bird Areas factsheet: Petrocrepost' Bay. Downloaded from http://www.birdlife.org on 01/12/2021.