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).
2020
1972
1989
2021
1977
2019
2017
2018
2013
2023
1955
1998
2024
1991
1968
2009