Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
1986 0 0:00
2000 172 1031:40
2001 79 1273:17
2002 71 1125:31
2003 26 1253:15
2004 70 1065:05
2005 25 1106:54
2006 680 964:46
2007 163 1081:59
2008 8 1099:59
2009 94 1282:49
2010 52 1288:05
2011 107 1234:15
2012 47 1364:55
2013 308 1352:29
2014 200 1299:50
2015 6 1223:30
2016 57 1409:54
2017 0 524:40
2018 53 1539:51
2019 19 1131:19
2020 18 987:40
 
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