Labels:text | screenshot OCR: BIRDS IN DANGER About 11 percent (or 1,000 species) of the world's birds are in danger of extinction. Some of these species are now so rare that extinction is almost certain. Others may still be rescued with prompt conservation action. There are several threats facing birds. These include habitat loss, hunting, and collecting for the pet trade. In addition, many island birds have suffered as a result of the introduction of animals such as cats. SEE ALSO