Graph

Country
Migration site
Species
Period    
Sex
Age
Plumage
Present
Favourites

Year Totals Observation hours
1997 4 39:30
1999 1 19:00
2001 659 594:30
2002 0 0:00
2005 67 77:15
2006 19 32:05
2007 64 88:45
2008 61 100:00
2009 8 52:20
2010 16 48:05
2011 47 88:24
2012 10 36:20
2013 30 37:30
2014 16 30:40
2015 30 44:40
2016 46 163:00
2017 195 179:29
2018 240 380:50
2019 228 344:15
2020 216 447:51
 
Partners