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).
2015
2018
2024
2013
1975
1976
1997
2017
2011
2009
2021
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1946
2016
1998