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).
1973
2009
2008
2020
2019
2024
1971
1996
2003
1991
1992
2012
2022
1976
2004
2011
2021