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).
2020
2023
2021
2005
2011
2019
1996
2003
1991
1992
1971
1962
2009
2022
2001
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1985