Graph

Country
Migration site
Species
Period    
Sex
 Age
 Plumage
Present
Favourites

Year Totals Observation hours
1986 0 0:00
2000 160 1031:40
2001 1710 1273:17
2002 305 1125:31
2003 3780 1253:15
2004 96 1065:05
2005 159 1106:54
2006 149 964:46
2007 109 1081:59
2008 173 1099:59
2009 279 1282:49
2010 2077 1288:05
2011 68 1234:15
2012 45 1364:55
2013 1248 1352:29
2014 13 1299:50
2015 120 1223:30
2016 105 1409:54
2017 263 524:40
2018 512 1539:51
2019 136 1131:19
2020 28 996:10
 
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