Published today in the journal Science and led by the University of Birmingham (UK) and CREAF, a new study has delved into the past and future of bird extinctions worldwide, going back to when humans first appeared, 130,000 years ago. Since then, according to the study, at least 610 species of birds have vanished, almost all of them as a result of human activities, and more than twice as many — another 1,305 — could die out in the next two centuries alone.