Abstract
In order to optimize coverage of the International Waterbird Census, the “Complete Wintering Waterbird Census” project started in 2004 with the aim to achieve almost complete coverage of suitable wetlands and consequently to assess the current distribution and numbers of wintering waterbirds. For each particular species the following information are given: Occurrence and numbers of particular species in January 2006 and 2007 are given in maps.
Open circles represent sites with species occurrence and its numbers in categories: 1-10 birds, 11-100 birds, 101-1000 birds and more than 1000 birds. Unoccupied sites are shown by close circles.