Since the last review in 2009, an additional 15 species of bird have been placed on the “red list”, a category that indicates a species is in danger of extinction or that has experienced significant decline in population or habitat in recent years. The total number of species on the red list is now 67 out of a total of 247. On top of this, eight species are considered at risk of global extinction: the balearic shearwater, aquatic warbler, common pochard, long-tailed duck, velvet scoter, slavonian grebe, puffin and turtle dove.