Hundreds of rare and threatened birds could 'die out' because of two key reasons

More than 500 bird species could go extinct in the next 100 years because of climate change and habitat loss, researchers have warned. The loss of vulnerable species such as the bare-necked umbrellabird, the helmeted hornbill and the yellow-bellied sunbird-asity would harm ecosystems that depend on unique birds like these for vital functions.

Kerry Stewart, lead author of the research from the University of Reading, said: "Many birds are already so threatened that reducing human impacts alone won't save them. These species need special recovery programmes, like breeding projects and habitat restoration, to survive.

"We face a bird extinction crisis unprecedented in modern times. We need immediate action to reduce human threats across habitats and targeted rescue programmes for the most unique and endangered species."

The scientists found that even with complete protection from human-caused threats like habitat loss, hunting and climate change, about 250 bird species could still die out.

The researchers examined nearly 10,000 bird species using data from the IUCN Red List, the world's most comprehensive information source on the global extinction risk status of species.

Professor Manuela Gonzalez-Suarez, senior author of the study at the University of Reading, said: "Stopping threats is not enough, as many as 250-350 species will require complementary conservation measures, such as breeding programmes and habitat restoration, if they are to survive the next century.

"Prioritising conservation programmes for just 100 of the most unusual threatened birds could save 68% of the variety in bird shapes and sizes. This approach could help to keep ecosystems healthy."