Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
1986 0 0:00
2000 2 1031:40
2001 3 1273:17
2002 3 1125:31
2003 5 1253:15
2004 3 1065:05
2005 1 1106:54
2006 4 964:46
2007 2 1081:59
2008 3 1099:59
2009 2 1282:49
2010 3 1288:05
2011 6 1234:15
2012 10 1364:55
2013 4 1352:29
2014 4 1299:50
2015 5 1223:30
2016 13 1409:54
2017 0 524:40
2018 7 1539:51
2019 8 1131:19
2020 6 996:10
 
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