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).
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1999
1966
1936
1996
2003
1992
2013
2021
1988
2007
1956
2017
2022
2006
2000
2008