Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
1986 0 0:00
2000 199 1031:40
2001 180 1273:17
2002 264 1125:31
2003 290 1253:15
2004 312 1065:05
2005 225 1106:54
2006 198 964:46
2007 213 1081:59
2008 263 1099:59
2009 688 1282:49
2010 476 1288:05
2011 469 1234:15
2012 309 1364:55
2013 451 1352:29
2014 320 1299:50
2015 388 1223:30
2016 356 1409:54
2017 18 524:40
2018 393 1539:51
2019 360 1131:19
2020 245 996:10
 
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