Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
1986 0 0:00
2000 551 1031:40
2001 589 1273:17
2002 992 1125:31
2003 831 1253:15
2004 690 1065:05
2005 698 1106:54
2006 671 964:46
2007 882 1081:59
2008 686 1099:59
2009 913 1282:49
2010 690 1288:05
2011 658 1234:15
2012 1005 1364:55
2013 695 1352:29
2014 1201 1299:50
2015 1000 1223:30
2016 1407 1409:54
2017 1043 524:40
2018 978 1539:51
2019 834 1131:19
2020 410 973:10
 
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