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).
1997
2017
1980
1942
2016
1965
2006
1977
1966
1904
2013
2022
2023
1991
2019
1961