Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
1986 0 0:00
2000 193 1031:40
2001 297 1273:17
2002 411 1125:31
2003 895 1253:15
2004 539 1065:05
2005 659 1106:54
2006 353 964:46
2007 660 1081:59
2008 946 1099:59
2009 518 1282:49
2010 884 1288:05
2011 713 1234:15
2012 911 1364:55
2013 384 1352:29
2014 677 1299:50
2015 552 1223:30
2016 480 1409:54
2017 282 524:40
2018 619 1539:51
2019 577 1131:19
2020 463 987:40
 
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