Of the world’s threatened birds, over 80% have populations that are currently in decline, just 9% are stable, whilst only 5% are increasing (largely owing to conservation action). For 3%, the direction of the current trend is unknown or unset.
Direction of current trend for threatened bird species.
n = 1,253 Critically Endangered, Endangered and Vulnerable bird species. Analysis of data held in BirdLife’s World Bird Database (2011).
Compiled 2008, updated 2011
BirdLife International (2011) Most threatened birds are in decline. Presented as part of the BirdLife State of the world's birds website. Available from: http://birdlife.org/datazone/sowb/casestudy/117. Checked: 21/04/2015