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).
2007
2006
2008
2021
2022
2005
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2019
1999
2024
2013
2014
2011
2017
1991
1967
1987