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).
2017
1996
1994
2022
2014
1964
1993
1940
2025
2019
2018
2021
2001