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
2023
1982
2007
1972
2014
2002
1986
1970
2022
2018
2024
1964
2015
1993
2021
2013