Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
1986 0 0:00
2000 81 1031:40
2001 103 1273:17
2002 38 1125:31
2003 106 1253:15
2004 56 1065:05
2005 109 1106:54
2006 68 964:46
2007 175 1081:59
2008 90 1099:59
2009 50 1282:49
2010 75 1288:05
2011 100 1234:15
2012 93 1364:55
2013 97 1352:29
2014 67 1299:50
2015 61 1223:30
2016 36 1409:54
2017 21 524:40
2018 91 1539:51
2019 60 1131:19
2020 99 1153:35
 
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