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).
2025
2017
2020
2001
2022
2021
2008
1954
2023
2019
1927
1969
1995
2014
2009
1971
2013