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).
2009
2025
1971
2012
2017
2016
2010
2020
2024
2014
1997
2021
2013
1958