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).
2013
2019
2016
1996
2021
2023
1953
2017
2008
2006
2000
2025
1985
2005
2022
2007