In 2016, Dutch birdwatcher Arjan Dwarshuis traveled the world to spot as many birds as possible in the span of one year, with the goal to break the big year world record (6042 species, set by Noah Strycker in 2015).
2005
1968
2016
2006
1991
2003
1969
1958
2011
1943
1948
2015
2008
1949
2021
1999
2017
2004
2023