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).
2020
2011
2002
2007
2021
2013
—
2018
1971
1966
2019
1995
2023
2006