Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
1986 0 0:00
2000 1 1031:40
2001 5 1273:17
2002 7 1125:31
2003 5 1253:15
2004 28 1065:05
2005 11 1106:54
2006 6 964:46
2007 1 1081:59
2008 5 1099:59
2009 9 1282:49
2010 11 1288:05
2011 13 1234:15
2012 26 1364:55
2013 4 1352:29
2014 16 1299:50
2015 9 1223:30
2016 6 1409:54
2017 3 524:40
2018 3 1539:51
2019 3 1131:19
2020 8 987:40
 
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