Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
1986 0 0:00
2000 20 1031:40
2001 13 1273:17
2002 33 1125:31
2003 53 1253:15
2004 70 1065:05
2005 39 1106:54
2006 23 964:46
2007 49 1081:59
2008 51 1099:59
2009 88 1282:49
2010 72 1288:05
2011 63 1234:15
2012 44 1364:55
2013 42 1352:29
2014 64 1299:50
2015 50 1223:30
2016 46 1409:54
2017 4 524:40
2018 47 1539:51
2019 32 1131:19
2020 42 987:40
 
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