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).
2016
1946
2019
1991
2001
2010
1965
2017
1970
2015
1979
2023
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1994