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).
1992
1993
1953
1956
2020
2015
2021
2014
2010
1985
2004
2019
2013
2009