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
2017
1993
1995
1986
2007
1970
2023
2019
1973
2022
1977
2013