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).
2011
2014
2012
2025
2008
2017
2022
2018
2015
2021
2024
1931
2016
2010
2019
2009
1996