Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
1986 0 0:00
2000 47 1031:40
2001 42 1273:17
2002 113 1125:31
2003 100 1253:15
2004 116 1065:05
2005 128 1106:54
2006 70 964:46
2007 142 1081:59
2008 119 1099:59
2009 162 1282:49
2010 154 1288:05
2011 156 1234:15
2012 101 1364:55
2013 69 1352:29
2014 84 1299:50
2015 81 1223:30
2016 106 1409:54
2017 24 524:40
2018 118 1539:51
2019 74 1131:19
2020 60 996:10
 
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