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).
2018
2016
2020
2024
2023
2019
2021
2010
2009
2007
2006
1999
2012
2025
2015