Hundreds of live hornbills and their parts, including casques, heads and feathers, are illegally traded in Indonesia, some online, according to a new study.Researchers reported that nearly 500 hornbills, most of them alive, were confiscated by Indonesian authorities from 2015 to 2024. The illegal commerce spanned seven countries. China was a prominent destination.More than 500 of the birds, including chicks, were sold online for the pet trade. Facebook was the main marketplace.As long-living, slow-reproducing birds, hornbills don’t bounce back easily from declines. Conservationists called on Indonesian authorities to enforce laws and prosecute those involved in the illegal trade. They also urged accountability for online platforms permitting this illicit activity.

Among the many inhabitants of Southeast Asia’s dense rainforests are hornbills — a group of birds that stand out with their raucous call, large, ostentatious beak and colorful feathers. Indonesia harbors 13 species, the most of any country in Asia, three of which are found nowhere else.

Hornbills are rapidly losing their homes as large swaths of Indonesian forests are cut down to make way for plantations, mining, dams, cities and other development, or are scorched by wildfires.