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Five most recent topics
- Yellow-breasted Pipit (Hemimacronyx chloris): uplist from Vulnerable to Endangered?
- Okarito Brown Kiwi (Apteryx rowi): Downlist to Vulnerable?
- White-winged Cotinga (Xipholena atropurpurea): downlist from Endangered to Vulnerable?
- Atlantic Royal Flycatcher (Onychorhynchus swainsoni): downlist from Vulnerable to Near Threatened?
- The taxonomic treatment of the Little Shearwater (Puffinus assimilis)/Audubon’s Shearwater (P. lherminieri) complex is being revised, and P. bryani is being recognised as a species: request for information
- BirdLife Partnership stretches its wings to Bhutan December 9, 2016BirdLife International, the world's largest conservation Partnership, has taken a new Partner under its wing: the Royal Society for Protection of Nature (RSPN) in the fascinating and richly biodiverse nation of Bhutan. Known in the local language as Druk Yul (meaning ‘Land of the Thunder Dragon’), this diminutive country, nestled in the mountains which separate […]
- The silencing of the songbirds December 8, 2016This article was first published in The Red List Issue of BirdLife The Magazine. Subscribe now to support our work and receive the latest conservation breakthroughs. The 2016 Red List reveals that Indonesia’s love of songbirds is a tainted love; unsustainable trapping is driving many endemic species towards extinction. Pramuka market assaults the senses. Crushed into […]
- Grey Parrot fading from Africa's rainforests December 8, 2016This article was first published in The Red List Issue of BirdLife The Magazine. Subscribe now to support our work and receive the latest conservation breakthroughs. When a team of researchers travelled around Ghana to conduct a Grey Parrot Psittacus erithacus census, they encountered a very pronounced generation gap. “The older people we surveyed remember the […]
- BirdLife Partnership stretches its wings to Bhutan December 9, 2016
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%.