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Five most recent topics
- Cory’s Shearwater (Calonectris diomedea) is being split: request for information on C. diomedea and C. borealis
- 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
- Aleutian Tern (Sterna aleutica): uplist to Vulnerable or Endangered?
- Ogea Monarch (Mayrornis versicolor): downlist to Near Threatened or Least Concern?
- West Indian Whistling-duck (Dendrocygna arborea): request for information
Category Archives: Bustards
This discussion was first published as part of the 2013 Red List update, but remains open for comment to enable reassessment in 2015. BirdLife species factsheet for Denham’s Bustard Denham’s Bustard Neotis denhami occurs from southern Mauritania, Senegal and the Gambia, … Continue reading
Archived 2014 discussion: Houbara Bustard (Chlamydotis undulata) is being split: list C. macqueenii as Vulnerable and C. undulata as Least Concern?
Houbara Bustard Chlamydotis undulata is being split into C. undulata and C. macqueenii, following the application of criteria set out by Tobias et al. (2010). Continue reading
Final decisions have been reached on the 2013 forum consultations. These are subject to approval and ratification by the IUCN. Continue reading
The attached spreadsheet lists preliminary decisions for the 2013 Red List update. Continue reading
Concern has recently been expressed over this species’s status, as there is evidence that it is declining in abundance (per Hofmeyr 2012). Following recent research, it has been recommended that the species be classified as Vulnerable because of past and probable future decreases in its population and because of its susceptibility to on-going land conversion, climate change and possibly increased predation (Hofmeyr 2012). Continue reading
BirdLife species factsheet for Kori Bustard Kori Bustard Ardeotis kori has an extensive African range. It is thought to be experiencing range-wide decline (Collar et al. 1986, Collar 1996), owing to ongoing habitat destruction and unsustainable levels of hunting (del Hoyo et … Continue reading
Archived 2012-2013 topics: Arabian Bustard (Ardeotis arabs) and Nubian Bustard (Neotis nuba): request for information
Vehicle-based transect surveys for raptors in the Sahel zone of Mali and Niger in 2004 failed to record any bustard species, despite both A. arabs and N. nuba being frequently recorded along the same transects in 1971 and 1973 (Thiollay 2006). Additional information on these species is requested, in particular on the severity of threats and likely population trends throughout their ranges. Continue reading
2011-2012 Forum topics Final decisions The attached spreadsheet lists the results of the 2012 forum consultations, subject to approval and ratification by IUCN. Please use the filters to look for your region or species group of interest. Any discussions of … Continue reading
2012 forum topics provisional decisions The attached spreadsheet lists preliminary decisions for the 2012 Red List. Please use the filters to look for your region or species group of interest. There will now be a further final opportunity to make … Continue reading
Archived 2011-2012 topics: Little Bustard (Tetrax tetrax): what are the trends in Russia and Central Asia?
The Little Bustard Tetrax tetrax has a Palaearctic distribution and two geographically separated breeding populations: the western (found in the EU); and eastern (breeding in western and central Asia). It is currently classified as Near Threatened under criterion A on the IUCN Red List, because it is suspected to have undergone a moderately rapid global population decline approaching 30% over three generations. If the global population is suspected to be undergoing an overall decline at a rate of 30-49% in 30 years, the global status of Little Bustard would need to be revised to Vulnerable. To re-evaluate its status, more data are needed about the size and trends of populations in the east, particularly from Russia and Central Asia. Continue reading
A survey conducted in August 2010 (coinciding with a peak in male displays) in north-western India (Gujarat, Rajasthan and Madhya Pradesh) (Bhardwaj et al. 2011), which followed methodology comparable to that of a survey in 1999 (Sankaran 2000), recorded a decline of 65% in the sightings of S. indicus. Information on recent population trends is requested from other parts of the species’s range to help in the assessment of the overall rate of decline. Continue reading
Although BirdLife International does not yet have the capacity to assess global extinction risk at the subspecies level, we are currently working on a project to produce a synthesis of all bird taxa, at the species and subspecies level, that are known or thought to have gone extinct since 1500. This is the first time that subspecies extinctions have been systematically documented and analysed, and we hope that the results will provide new insights to support global efforts (including through the BirdLife Partnership) to conserve the world’s threatened birds. Continue reading