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).
1983
2008
2014
2020
2019
2021
1969
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1968
2018
1971
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2010
1954