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
2012
2019
2014
1986
2025
1909
1900
2010
2016
2009
2024
2021
2008
1996
1998