Brilliantly colored, noisy, and active during the day, many birds are easy to spot—and identify. In the past two decades, an average of fewer than six new bird species have been described every year in the entire world.

But 2020 will be different, as scientists have just announced 10 previously undescribed species and subspecies from three Indonesian islands east of Sulawesi.

This amazing avian haul was collected over six weeks in 2013 and 2014 to the mountainous islands of Taliabu, Peleng, and Batudaka, locations that were suspected to be hideouts for unknown birds, says study leader Frank Rheindt, an ornithologist at the National University of Singapore. One reason is that 19^th-century explorers, such as British naturalist Alfred Russel