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).
2011
1984
2016
1988
1977
1918
2018
1960
2019
1933
2023
2022
2020
1926
2012
1993