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).
2002
2010
1986
1987
2025
2001
2021
2022
2023
2016
2018
2009
2007
2013
1991
2014
2015