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).
1981
1980
2005
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1994
2016
1995
1989
1944
1985
2001
2017
1976
1978
2023
2022