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Five most recent topics
- Review of illegal killing of birds in Europe, the Arabian Peninsula, Iraq and Iran
- Shy Albatross (Thalassarche cauta): uplist from Near Threatened to Vulnerable?
- Amsterdam Albatross (Diomedea amsterdamensis): downlist from Critically Endangered to Endangered?
- Okarito Brown Kiwi (Apteryx rowi): Downlist to Vulnerable?
- Northern Brown Kiwi (Apteryx mantelli): downlist to Vulnerable?
- Vultures need you March 24, 2017Let’s face it: vultures are special. Part of human culture, they are seen as disgusting by some, yet loved by others (including us and you). Asia’s vultures have suffered some of the fastest population declines ever recorded in a bird, and Africa’s recent severe declines mean that now most old-world vultures are on the edge […]
- Discover Australia's most vital places for nature March 24, 2017Picture Australia's most spectacular wild places—the places that evoke nostalgia in the hearts of Australians and beckon visitors from far-flung lands. Your mind might immediately jump to the dramatic sandstone escarpment and broad floodplains of Kakadu, or the pristine red shores of Broome’s Roebuck Bay. Or maybe you envisage the lushness of Queensland’s tropical rainforests […]
- From Rome with Love March 24, 2017This article is the editorial for the March edition of the BirdLife Europe & Central Asia Newsletter. To read our newsletter, click here.
- Vultures need you March 24, 2017
Tag Archives: Grey Crowned-crane
When this species was uplisted from Least Concern to Vulnerable in the 2009 Red List update, there was some evidence to suggest that declines may have exceeded a rate of 50% during the past three generations or 45 years (Beilfuss et al. 2007), but data were regarded as patchy and an overall decline of 30-49% was considered a more reasonable estimate. Overall estimates suggest that the species’s global population has declined from over 100,000 individuals in 1985 to 50,000-64,000 individuals in 2004 (Beilfuss et al. 2007). This implies that the species may have declined by over 50% in 19 years, and when these data are extrapolated to a period of 45 years in the past (1967-2012) or past and future (1985-2030), assuming an exponential trend, the calculated rate of decline is c.65-80%.