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).
1963
2011
2019
2013
2018
2006
2017
1967
2021
2022
1990
1978