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).
2015
2023
1968
2012
1983
2022
2014
2011
2010
—
2013
2025
2024
2020
1945
2004
1991