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).
2008
1957
2020
2006
2005
2019
2011
2023
2015
2022
2018
1971
2021
1988