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).
2021
1998
2012
2018
2008
2013
2019
1949
2017
1947
2023
2006
1943
2007
2025