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
2006
1986
2007
2002
2000
2014
2022
1977
1944
2004
2023
1918
1940
2015
2017