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).
2016
1993
1937
2002
2017
1996
1998
2014
2011
2004
1995
2015
2021
2025
1953
1983
2019