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).
2019
1977
2023
2010
2009
2001
—
1988
1996
2017
2003
2021
2018
2020
2025
2016
1968