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
1999
2013
2015
2024
2017
2023
1988
2009
1951
2011
2020
2014
2025