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).
2003
2021
2008
1996
1998
2023
2013
1999
1930
2022
1971
2001
2009
2018
2005