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).
2021
2015
1965
1976
1971
2017
1987
2016
2001
2006
1977
1996
1999
2002
2008
2009
1939