Numbers and distribution of rare and non-native waterbirds in January 2004 - 2007

Abstract

In 30 rare and non-native species, summary data from January 2004, 2005, 2006 and 2007 include number of occupied sites, number of counted individuals and comparison of subsequent winters, i.e. relative (percentage) changes in numbers of occupied sites, numbers of counted birds are given.

Keywords

• Numbers
• distribution
• non-native species
• waterbirds
• Czech Republic