Category Archives: North America

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Cory’s Shearwater (Calonectris diomedea) is being split: request for information on C. diomedea and C. borealis

Cory’s Shearwater Calonectris diomedea is being split into C. diomedea and C. borealis, following the application of criteria set out by Tobias et al. (2010) and consultation of genetic evidence (Gómez-Díaz et al. 2009, Genovart et al. 2013). Continue reading

Posted in Africa, Americas, Europe & Central Asia, North America, Seabirds, South America | Tagged | 2 Comments

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’s taxonomic treatment of the Little Shearwater Puffinus assimilis/Audubon’s Shearwater P. lherminieri complex is being revised to reflect improved understanding of their taxonomy, and P. bryani (Pyle et al. 2011) is to be recognised as a species. Continue reading

Posted in Africa, Americas, Asia, Australia, Caribbean, Central America, Europe & Central Asia, Hawaii, Middle East, North America, Pacific, Seabirds, South America | Tagged , | 3 Comments

Aleutian Tern (Sterna aleutica): uplist to Vulnerable or Endangered?

This discussion was first published as part of the 2014 Red List update, but remains open for comment to enable reassessment in 2015. Current species factsheet for Aleutian Tern: http://www.birdlife.org/datazone/speciesfactsheet.php?id=3285 Aleutian Tern Sterna aleutica is currently listed as Least Concern … Continue reading

Posted in Asia, North America, Seabirds, Uncategorized | Tagged | 5 Comments

Mexican Parrotlet (Forpus cyanopygius): uplist to Near Threatened or Vulnerable?

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 Mexican Parrotlet Mexican Parrotlet Forpus cyanopygius is restricted to Western Mexico. It is currently listed … Continue reading

Posted in Americas, Central America, North America, Parrots | Tagged | 2 Comments

Flammulated Flycatcher (Deltarhynchus flammulatus): uplist to Near Threatened or Vulnerable?

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 Flammulated Flycatcher Flammulated Flycatcher Deltarhynchus flammulatus is restricted to the Mexican Pacific Region. It … Continue reading

Posted in Americas, Central America, North America | Tagged | 2 Comments

Sierra Madre Sparrow (Xenospiza baileyi): is it correctly listed as Endangered?

Although the range estimates for this species meet the thresholds for Critically Endangered, it does not qualify for this status because it is known from more than one location and its habitat was not considered to be severely fragmented. Further detailed information on this species is requested in order to clarify its status. Continue reading

Posted in Americas, North America | Tagged | 6 Comments

Cassin’s Auklet (Ptychoramphus aleuticus): uplist to Near Threatened or Vulnerable?

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 Cassin’s Auklet Cassin’s Auklet Ptychoramphus aleuticus ranges from Baja California (Mexico) up the Pacific … Continue reading

Posted in Americas, North America, Seabirds | Tagged | 3 Comments

Tamaulipas Pygmy-Owl (Glaucidium sanchezi): eligible for uplisting?

Remapping of this species’s range has resulted in a new estimated EOO of 19,300 km2. Comments on the potential uplisting of the species and further information are requested, in particular information on the level of habitat fragmentation and number of locations. Continue reading

Posted in Americas, North America | Tagged | 3 Comments

Suggestions for new topics

To suggest discussion of a species not listed in the forum, send a reply to this discussion. A moderator will assess the suitability of the topic and create a new topic if appropriate. Continue reading

Posted in Africa, Americas, Asia, Australia, Caribbean, Central America, Europe & Central Asia, Galliformes, Hawaii, Middle East, North America, Pacific, Parrots, Seabirds, South America, Waterbirds | Leave a comment

Archived 2014 discussion: Additional changes to species listed as Extinct: six [edited from five] Extinct species are being re-categorised as Not Recognised and 12 taxa [edited from 11] are being newly recognised as Extinct species

Five Extinct species are being re-categorised as Not Recognised and 12 taxa are being newly recognised as Extinct species following descriptions and evidence that they are likely to have remained extant post-1500. Continue reading

Posted in Africa, Americas, Archive, Caribbean, North America, Pacific, Parrots, Waterbirds | 7 Comments

Archived 2014 discussion: Xantus’s Murrelet (Synthliboramphus hypoleucus) is being split: list S. hypoleucus as Endangered and S. scrippsi as Vulnerable?

Xantus’s Murrelet Synthliboramphus hypoleucus is being split into S. hypoleucus and S. scrippsi, following the application of criteria set out by Tobias et al. (2010), and consideration of genetic evidence (Birt et al. 2012). Continue reading

Posted in Americas, Archive, Central America, North America, Seabirds | Tagged | 2 Comments

Archived 2014 discussion: Clapper Rail (Rallus longirostris) is being split: list R. obsoletus (incorporating levipes, yumanensis and beldingi) as Near Threatened or Vulnerable?

Clapper Rail Rallus longirostris is being split into R. longirostris, R. obsoletus and R. crepitans, following the application of criteria set out by Tobias et al. (2010). Continue reading

Posted in Americas, Archive, Caribbean, Central America, North America, South America, Waterbirds | Tagged | 3 Comments

Archived 2014 discussion: Red-lored Amazon (Amazona autumnalis) is being split: list A. lilacina and A. diadema as Endangered and A. autumnalis as Least Concern?

Red-lored Amazon Amazona autumnalis is being split into A. autumnalis, A. lilacina and A. diadema, following the application of criteria set out by Tobias et al. (2010). Continue reading

Posted in Americas, Archive, Central America, North America, Parrots, South America | Tagged | 3 Comments

Archived 2014 discussion: Two Amazona splits: list both Amazona guatemalae and A. bodini as Near Threatened?

Festive Amazon Amazona festiva is being split into A. festiva and A. bodini, and Mealy Amazon A. farinosa is being split into A. farinosa and A. guatemalae, following the application of criteria set out by Tobias et al. (2010). Continue reading

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Archived 2014 discussion: King Rail (Rallus elegans) is being split: request for information on R. elegans and R. tenuirostris.

King Rail Rallus elegans is being split into R. elegans and R. tenuirostris, following the application of criteria set out by Tobias et al. (2010) and consultation of genetic evidence (Maley and Brumfield 2013). Continue reading

Posted in Americas, Archive, Caribbean, Central America, North America | Tagged | 1 Comment

Archived 2014 discussion: American Coot (Fulica americana) and Caribbean Coot (F. caribaea) are being lumped as F. americana: list the newly defined species as Least Concern?

American Coot Fulica americana and Caribbean Coot F. caribaea are being lumped as F. americana, following the application of criteria set out by Tobias et al. (2010) and study of published information (Robertson and Baptista 1988, McNair and Cramer-Burke 2006, Sibley 2011). Continue reading

Posted in Americas, Archive, Caribbean, Central America, North America, South America, Waterbirds | Tagged , | 3 Comments

Archived 2014 discussion: Wedge-tailed Sabrewing (Campylopterus curvipennis) and Long-tailed Sabrewing (C. excellens) are being lumped as C. curvipennis: list the newly defined species as Least Concern?

Wedge-tailed Sabrewing Campylopterus curvipennis and Long-tailed Sabrewing C. excellens are being lumped as C. curvipennis, following the application of criteria set out by Tobias et al. (2010). Continue reading

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Archived 2014 discussion: Green Parakeet (Aratinga holochlora) and Socorro Parakeet (A. brevipes) are being lumped as A. holochlora: list the newly defined species as Least Concern?

Green Parakeet Aratinga holochlora and Socorro Parakeet A. brevipes are being lumped as A. holochlora, following the application of criteria set out by Tobias et al. (2010). Continue reading

Posted in Americas, Archive, Central America, North America, Parrots | Tagged , | 2 Comments

Archived 2014 discussion: Balsas Screech-owl (Megascops seductus): downlist to Least Concern?

Balsas Screech-owl Megascops seductus has a moderately small range in west-central Mexico, where it is a fairly common resident. It is listed as Near Threatened on the IUCN Red List because it was thought to have a restricted range that approaches the threshold for listing as Vulnerable, however this species has been mapped by Natureserve/BirdLife International as having an estimated Extent of Occurrence (EOO) of 80,200 km2, hence it does not appear to approach the IUCN thresholds and appears to warrant downlisting to Least Concern. Continue reading

Posted in Archive, Central America, North America | Tagged | 6 Comments

Archived 2014 discussion: McKay’s Bunting (Plectrophenax hyperboreus): downlist to Least Concern?

This discussion was first published as part of the 2013 Red List update, but remains open for comment to enable reassessment in 2014. BirdLife species factsheet for McKay’s Bunting McKay’s Bunting Plectrophenax hyperboreus breeds on Hall and St Matthew islands (USA) … Continue reading

Posted in Americas, Archive, North America | Tagged | 3 Comments

Archived 2014 discussion: Kittlitz’s Murrelet (Brachyramphus brevirostris): is it eligible for downlisting?

It is proposed that the species’s status be re-evaluated. However, there is a lack of consensus regarding the species’s current population trend, with views that the species may be declining more slowly than previously thought, or that it could be stable or increasing. Further information is requested on the likely trend over a period of three generations. Continue reading

Posted in Americas, Archive, Asia, North America, Seabirds | Tagged | 19 Comments

Archived 2014 discussion: Lesser Yellowlegs (Tringa flavipes): request for information

Lesser Yellowlegs Tringa flavipes is listed as Least Concern on the basis that it is not believed to approach the thresholds for Vulnerable under any of the IUCN criteria. In recent years, evidence of declines in the population of T. flavipes has raised concerns over the species’s status. Up-to-date information is requested on this species’s population trend and the severity of potential threats. Continue reading

Posted in Archive, Caribbean, Central America, North America, South America, Waterbirds | Tagged | 14 Comments

Archived 2014 discussion: Yellow-billed Magpie (Pica nuttalli): eligible for uplisting?

There is now evidence that this species has suffered high levels of mortality and a severe population decline owing to a high susceptibility to West Nile virus (Airola et al. 2007, Crosbie et al. 2008), since its documented arrival in California in summer 2003 (Reisen et al. 2004), with data suggesting a decline of 42-49% from 2004 to 2006 (Crosbie et al. 2008). Comments are invited on the potential uplisting of this species under criterion A, and further information is requested, particularly on whether the observed rapid decline and high mortality have continued up until the present. Continue reading

Posted in Americas, Archive, North America | Tagged | 3 Comments

Archived 2014 discussion: Wood Thrush (Hylocichla mustelina): uplist to Near Threatened?

It is proposed that the species be uplisted as Near Threatened under criterion A2a, on the basis that it is estimated to have undergone a moderately rapid population decline (approaching 30%) over the past three generations (12 years), based on survey results. Continue reading

Posted in Americas, Archive, Central America, North America | Tagged | 3 Comments

Archived 2014 discussion: Lilac-crowned Amazon (Amazona finschi): uplist to Endangered?

This discussion was first published as part of the 2013 Red List update, but remains open for comment to enable reassessment in 2014. BirdLife species factsheet for Lilac-crowned Amazon Lilac-crowned Amazon Amazona finschi is restricted to the Pacific coast of Mexico (Forshaw … Continue reading

Posted in Americas, Archive, Central America, North America, Parrots | Tagged | 3 Comments

Archived 2014 discussion: Kentish Plover (Charadrius alexandrinus) is being split: list C. nivosus as Near Threatened, C. dealbatus as Data Deficient and C. alexandrinus as Least Concern?

Kentish Plover Charadrius alexandrinus is being split into C. alexandrinus, C. nivosus and C. dealbatus, following the application of criteria set out by Tobias et al. (2010). Continue reading

Posted in Africa, Americas, Archive, Asia, Caribbean, Central America, Europe & Central Asia, Middle East, North America, South America | Tagged | 14 Comments

Archived 2014 discussion: Montezuma Quail (Cyrtonyx montezumae) is being split: list C. sallei as Near Threatened?

Montezuma Quail Cyrtonyx montezumae is being split into C. montezumae and C. sallei following the application of criteria set out by Tobias et al. (2010). Continue reading

Posted in Americas, Archive, Galliformes, North America | Tagged | 2 Comments

Archived 2014 discussion: Broad-billed Hummingbird (Cynanthus latirostris) is being split: list C. lawrencei as Near Threatened?

Broad-billed Hummingbird Cynanthus latirostris is being split into C. latirostris, C. doubledayi and C. lawrencei, following the application of criteria set out by Tobias et al. (2010). Continue reading

Posted in Americas, Archive, North America | Tagged | 2 Comments

Archived 2014 discussion: Olive-throated Parakeet (Aratinga nana) is being split: list A. nana as Near Threatened?

Olive-throated Parakeet Aratinga nana is being split into A. nana and A. astec, following the application of criteria set out by Tobias et al. (2010). Continue reading

Posted in Americas, Archive, Caribbean, Central America, North America, Parrots | Tagged | 3 Comments

Final decisions for the 2013 Red List

Final decisions have been reached on the 2013 forum consultations. These are subject to approval and ratification by the IUCN. Continue reading

Posted in Africa, Americas, Asia, Australia, Bustards, Caribbean, Central America, Europe & Central Asia, Galliformes, Hawaii, Middle East, North America, Pacific, Parrots, Seabirds, South America, Vultures, Waterbirds | 1 Comment

Preliminary decisions for the 2013 Red List

The attached spreadsheet lists preliminary decisions for the 2013 Red List update. Continue reading

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Archived 2012-2013 topics: Pileated Flycatcher (Xenotriccus mexicanus): downlist to Least Concern?

Pileated Flycatcher Xenotriccus mexicanus is listed as Near Threatened, however, this species has been mapped by Natureserve/BirdLife International as having an estimated Extent of Occurrence (EOO) of 113,000 km2, hence it does not appear to approach the IUCN thresholds and appears to warrant downlisting to Least Concern. Continue reading

Posted in Archive, Central America, North America | Tagged | 3 Comments

Archived 2012-2013 topics: Red-cockaded Woodpecker (Picoides borealis): downlist to Near Threatened?

Red-cockaded Woodpecker Picoides borealis is presently listed as Vulnerable because its population was estimated to number fewer than 10,000 mature individuals and was previously estimated to be declining at a rate of 20-29% over 16 years. It has recently been confirmed, however, that the species’s population has exceeded 10,000 mature individuals since at least 2000, and is provisionally estimated to have numbered 14,500 mature individuals in 2008. In addition, it is now thought that the population is stable and possibly increasing, and has been at least since 2003. Consequently, it is proposed to downlist the species to Near Threatened. Continue reading

Posted in Archive, North America | Tagged | 2 Comments

Archived 2012-2013 topics: Laysan Duck (Anas laysanensis): downlist to Vulnerable?

In 2004, Laysan Duck Anas laysanensis was uplisted to Critically Endangered because new information suggested that its population was undergoing extreme fluctuations within its extremely small range on just one island, however following successful translocations, by the 2011 Red List update the population will be estimated to have been increasing for at least five years without the occurrence of extreme fluctuations. It is therefore proposed to downlist the species to Vulnerable under criterion D2. Continue reading

Posted in Americas, Archive, Hawaii, North America, Pacific, Waterbirds | Tagged | 5 Comments

Archived 2012-2013 topics: Oaxaca Sparrow (Aimophila notosticta): request for information

Oaxaca Sparrow Aimophila notosticta is currently listed as Near Threatened under criterion B1a+b(i,ii,iii,v), on the basis that it has a moderately small range, which is probably in decline owing to habitat loss and degradation. This species’s Extent of Occurrence was recently estimated at 39,300 km2 which does not approach the threshold for Vulnerable under the B1 criterion.
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Posted in Archive, North America | Tagged | 2 Comments

Archived: Final decisions for the 2012 Red List

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

Posted in Africa, Americas, Asia, Australia, Bustards, Caribbean, Central America, Europe & Central Asia, Galliformes, Hawaii, Middle East, North America, Pacific, Parrots, Seabirds, South America, Vultures, Waterbirds | 6 Comments

Archived: Preliminary decisions for the 2012 Red List

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

Posted in Africa, Americas, Archive, Asia, Australia, Bustards, Caribbean, Central America, Europe & Central Asia, Galliformes, Hawaii, Middle East, North America, Pacific, Parrots, Seabirds, South America, Species Group, Vultures, Waterbirds | 2 Comments

Archived 2011-2012 topics: Island Scrub-jay (Aphelocoma insularis): does it qualify as Vulnerable?

The species’s population was estimated to number c.9,000 mature individuals (Rich et al. 2004), although the analysis of survey results from 2008 and 2009 suggests there may actually be fewer than 3,000 individuals, and perhaps only c.2,400, but with no clear evidence of a decline (Morrison et al. 2011, The Nature Conservancy 2011). It may be susceptible to catastrophic fires and the introduction of diseases, and there is particular concern over the potential danger from West Nile virus, which arrived in mainland southern California in 2003, but has not yet become established on Santa Cruz Island (c.30 km from the mainland) (Boyce et al. 2011, Morrison et al. 2011). The species potentially qualifies for uplisting to Vulnerable under criterion D2. Comments are invited on this potential category change and further information would be welcomed. Continue reading

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Archived 2011-2012 topics: Sinaloa Martin (Progne sinaloae): list as Near Threatened?

A comprehensive review of records by Lethaby and King (2010) suggests that there may be sufficient information available for an assessment of the species’s threat status against the IUCN criteria; indeed, the authors recommend that the species be listed as Endangered under criterion C2a(ii), with a declining population and fewer than 2,500 mature individuals remaining. Continue reading

Posted in Americas, Archive, Central America, North America, South America | Tagged | 4 Comments

Archived 2011-2012 topics: Greater Scaup (Aythya marila): uplist to Near Threatened or Vulnerable?

Greater Scaup Aythya marila breeds in tundra and moorland in northernmost Europe, Asia and North America, and winters in shallow coastal waters and occasionally inland water bodies south of its breeding grounds. The species is currently listed as Least Concern on the basis that it was not thought to approach the thresholds for Vulnerable under any of the IUCN criteria. An analysis of Christmas Bird Count data collected since the mid-1960s suggests that an annual population change of -3.4% has occurred across c.85% of the species’s range in North America, indicating a 75% decline between 1965-1966 and 2005-2006 (Butcher and Niven 2007), and suggesting a decline of c.57% over the last three generations.
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Posted in Americas, Archive, Asia, Europe & Central Asia, North America, Waterbirds | 7 Comments

Archived 2011-2012 topics: Long-tailed Duck (Clangula hyemalis): uplist to Endangered?

Long-tailed Duck Clangula hyemalis is a widespread circumpolar species that breeds mainly in the Arctic tundra and winters generally to the south, mainly far offshore. It is currently listed as Least Concern because it was not thought to approach the thresholds for Vulnerable under any of the IUCN Red List criteria. Taking the 27-year decline rates calculated for the Baltic and North American populations, and assuming that the two other smaller populations have remained stable, the species’s global population may be declining at a rate of more than 50% over three generations, which would qualify the species for uplisting to Endangered under criterion A.
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Posted in Americas, Archive, Asia, Europe & Central Asia, North America, Waterbirds | 16 Comments

Archived 2011-2012 topics: Taxonomic changes in the genus Melanitta, part II: suggestions to list M. fusca as Endangered and M. deglandi as Least Concern, and request for information on M. stejnegeri

White-winged Scoter Melanitta fusca has been split into M. fusca, M. deglandi and M. stejnegeri following a review of recent literature (Livezey 1995, Garner et al. 2004, Sangster et al. 2005, Collinson et al. 2006, AOU 2010) and museum specimens by the BirdLife Taxonomic Working Group. Further information is requested and comments are invited on whether the population of M. fusca is likely to have declined at a rate equivalent to 50-79% over the past three generations, and thus whether it qualifies for listing as Endangered under criterion A. Continue reading

Posted in Americas, Archive, Asia, Europe & Central Asia, North America, Waterbirds | 10 Comments

Archived 2011-2012 topics: Taxonomic changes in the genus Melanitta, part I: suggestion to list M. nigra as Vulnerable and request for information on M. americana

Black Scoter Melanitta nigra has been split into M. nigra and M. americana following a review of recent literature (Livezey 1995, Garner et al. 2004, Sangster et al. 2005, Collinson et al. 2006, AOU 2010) and museum specimens by the BirdLife Taxonomic Working Group. Further information is requested on population trends in these two newly-split species and comments are invited on whether the population of M. nigra is likely to have declined at a rate equivalent to at least 30% over the past three generations, and thus if it qualifies for listing as at least Vulnerable under criterion A. Continue reading

Posted in Americas, Archive, Asia, Europe & Central Asia, North America, Waterbirds | 11 Comments

Archived: How many subspecies have gone extinct in the Neotropics?

BirdLife International is 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. Subspecies extinctions are generally not well documented, and so we would greatly appreciate any information and updates (including on recent surveys or rediscoveries) to support this effort. Continue reading

Posted in Americas, Archive, Caribbean, Central America, North America, Parrots, South America | 4 Comments

Archived 2011-2012 topics: Orange-breasted Falcon (Falco deiroleucus): request for information

A detailed study by Berry et al. (2010) highlights the overall population decline and range contraction observed in this species and cites a number of threats that are likely to be impacting it. Estimating the rate of decline in widespread species is always challenging, but further information and data are nevertheless required in order to assess this species’s threat status. Continue reading

Posted in Americas, Archive, Central America, North America, South America | Tagged | 7 Comments

Archived 2011-2012 topics: Yellow-naped Amazon (Amazona auropalliata): is it eligible for uplisting?

The species is regarded as declining, probably throughout its range, owing to habitat loss and degradation, driven primarily by the expansion of agriculture, and capture for local and international trade (Juniper and Parr 1998, Anon. 2008). Further information is requested on the severity of threats and likely rate of decline over the last 37 years and projected rate of decline over the next 37 years. Continue reading

Posted in Americas, Archive, Central America, North America, Parrots | Tagged | 2 Comments

Archived 2011-2012 topics: Thick-billed Parrot (Rhynchopsitta pachyrhyncha): request for information

Thick-billed Parrot R. pachyrhyncha is listed as Endangered under criterion C2a(ii) on the basis that its population numbers fewer than 2,500 mature individuals and is suspected to be declining due to the clearance and degradation of its habitat. Recently, concerns have been expressed to us that this population estimate may be incorrect by an order of magnitude, as there are apparently fewer than 100 active nests each year (J. Gilardi in litt. 2010). Continue reading

Posted in Archive, North America, Parrots | Tagged | 1 Comment

Archived 2011-2012 topics: Colima Warbler Vermivora crissalis: downlist to Least Concern?

Colima Warbler Vermivora crissalis is currently listed as Near Threatened, however there appears to be no evidence that the species’s population is declining moderately rapidly and its Extent of Occurrence is estimated to be 100,000 km2. Furthermore, there do not appear to be any current severe threats and the species is tolerant of some habitat disturbance. Therefore, it does not appear to approach the Red List thresholds for either criteria and it may require downlisting to Least Concern. Continue reading

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Archived 2011-2012 topics: Tufted Jay (Cyanocorax dickeyi): request for information

Tufted Jay Cyanocorax dickeyi is listed as Near Threatened under criterion B1a+b(i,ii,iii,v) on the basis that it has a moderately small range, in which it faces the limited threats of habitat clearance and degradation owing to agricultural encroachment and logging. Up-to-date information is requested on this species’s likely population size, current trend over 18 years (estimate of three generations) and the severity of threats, to help in the assessment of its status.
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Archived 2011-2012 topics: Yucatan Wren (Campylorhynchus yucatanicus): request for information

Yucatan Wren Campylorhynchus yucatanicus is currently listed as Near Threatened because although it has a small range and moderately small population, its range is not considered to be severely fragmented or restricted to a few locations. Further information on threats and likely trends in this species’s range and population is sought.
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Posted in Archive, North America | Tagged | 1 Comment

Archived 2011-2012 topics: Bearded Screech-owl (Megascops barbarus): request for information

Bearded Screech-owl Megascops barbarus is listed as Near Threatened on the basis that it occupies a moderately small range, which is suspected to be in decline owing to the loss and degradation of its habitat. Its revised Extent of Occurrence does not approach the threshold for Vulnerable, and up-to-date information is requested on this species’s likely population size, current rate of population decline over 21 years (estimate of three generations) and the severity of threats, in order to help assess its status. Continue reading

Posted in Archive, Central America, North America | Tagged | 2 Comments

Archived 2011-2012 topics: Spotted Owl (Strix occidentalis): downlist to Least Concern?

Spotted Owl em>Strix occidentalis is currently listed as Near Threatened as its population was estimated to approach the threshold for Vulnerable and was previously suspected to be undergoing a decline, however by the 2011 Red List update, this species will have been considered to be stable and possibly increasing in the USA for five years, making it eligible for downlisting to Least Concern. Comments are invited on this potential category change. Continue reading

Posted in Archive, North America | Tagged | 6 Comments

Archived 2011-2012 topics: Black-footed Albatross (Phoebastria nigripes): eligible for downlisting?

Black-footed Albatross Phoebastria nigripes is currently listed as Endangered under criterion A4b,d, on the basis that its population is projected to decline by more than 60% over 56 years (estimate of three generations), as modelled using a moderate scenario for fisheries bycatch of 8,000 birds per year (Lewison and Crowder 2003). The recent analysis presented by Arata et al. (2009) brings into question the validity of the species’s current Red List status. It suggests that the rate of projected decline should be lowered, which could result in the species becoming eligible for downlisting. Continue reading

Posted in Archive, Asia, Hawaii, North America, Pacific, Seabirds | Tagged | 2 Comments

Archived 2011-2012 topics: Semipalmated Sandpiper (Calidris pusilla): request for information

Semipalmated Sandpiper Calidris pusilla is listed as Least Concern on the basis that it does not approach the thresholds for Vulnerable under any of the IUCN criteria. Recent population trends appear to have been negative for this species in many areas. Up-to-date information is requested on this species, in particular the likely population trend and the severity of threats. Continue reading

Posted in Archive, Caribbean, Central America, North America, South America, Waterbirds | Tagged | 4 Comments

Archived 2011-2012 topics: Mexican Sheartail (Doricha eliza): request for information

Mexican Sheartail Doricha eliza is currently listed as Near Threatened, as although it has a small range and moderately small, declining population is not considered to be severely fragmented or restricted to a few locations. Up-to-date information is requested on this species’s total population size, estimated rate of decline and the severity of threats. Continue reading

Posted in Archive, North America | Tagged | 4 Comments

Archived 2011-2012 topics: Sumichrast’s Wren (Hylorchilus sumichrasti): request for information

Sumichrast’s Wren Hylorchilus sumichrasti is currently listed as Near Threatened, however with an Extent of Occurrence now estimated at 997 km2, the species’s population is likely to have been overestimated and the species could potentially qualify as Vulnerable or Endangered. Up-to-date information is sought on the likely population size and structure, and the level of habitat fragmentation within this species’s range. Continue reading

Posted in Archive, North America | Tagged | 1 Comment

2011 Red List final decisions

The discussion period for the 2011 Red List has now finished and final decisions have been taken – these decisions will be incorporated into the 2011 Red List, which will be released by BirdLife in May 2011, and by IUCN … Continue reading

Posted in Africa, Americas, Asia, Australia, Caribbean, Central America, Europe & Central Asia, Galliformes, Hawaii, Middle East, North America, Pacific, Parrots, Seabirds, South America, Waterbirds | Leave a comment

2011 Red List draft decisions

The attached spreadsheets list the draft decisions for the 2011 IUCN Red List. There is now a final opportunity for comments on these proposals prior to a final deadline of 21 February 2011. Africa 2010-2011 Americas 2010-2011 Asia 2010-2011 Europe … Continue reading

Posted in Africa, Americas, Asia, Australia, Caribbean, Central America, Europe & Central Asia, Galliformes, Hawaii, Middle East, North America, Pacific, Parrots, Seabirds, South America, Waterbirds | 1 Comment

Archived 2010-2011 topics: Belted Flycatcher (Xenotriccus callizonus): downlist to Least Concern?

Belted Flycatcher Xenotriccus callizonus is listed as Near Threatened on the IUCN Red List because it was thought to have a restricted range that approaches the threshold for listing as Vulnerable. However, this species has been mapped by Natureserve/BirdLife International as having an estimated Extent of Occurrence (EOO) of 56,900 km2, hence it does not appear to approach the IUCN thresholds and appears to warrant downlisting to Least Concern. Continue reading

Posted in Archive, Central America, North America | Tagged | 2 Comments

Archived 2010-2011 topics: Black Catbird (Melanoptila glabrirostris): uplist to Vulnerable?

Black Catbird Melanoptila glabrirostris is currently classified as Near Threatened, however if rapid habitat loss has led to population declines of >30% over the past 10 years, the species would warrant uplisting to Vulnerable.

(This discussion was first posted as part of the 2009 Red List update) Continue reading

Posted in Archive, Central America, North America | Tagged | 2 Comments

Archived 2010-2011 topics: Maroon-fronted Parrot (Rhynchopsitta terrisi): uplist to Endangered?

Maroon-fronted Parrot Rhynchopsitta terrisi is currently listed as Vulnerable under criterion B1 of the IUCN Red List owing to its small range and declining area of habitat. Recently, it has been suggested that the population size has been over-estimated for this species (J. Gilardi in litt. 2010), so up-to-date information is requested. Continue reading

Posted in Archive, North America, Parrots | Tagged | 4 Comments

Archived 2010-2011 topics: Belding’s Yellowthroat (Geothlypis beldingi): downlist to Endangered?

Belding’s Yellowthroat Geothlypis beldingi is currently listed as Critically Endangered under criterion B1a+b(i,ii,iii,iv,v) on the basis that it was considered to have an Extent of Occurrence (EOO) estimated at less than 100 km2, in which its habitat is severely fragmented and the population is suspected to be declining due to habitat loss and degradation caused by fires, reed-cutting for construction, and drainage for conversion to cultivation and pasture (Rodríguez-Estrella et al. 1999). Erickson et al. (2008) published new localities for the species and indicated that its dispersal capabilities may be better than previously thought.
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Posted in Archive, North America | Tagged | 1 Comment

Archived 2010-2011 topics: Military Macaw (Ara militaris): request for information

Military Macaw Ara militaris is listed as Vulnerable under criteria A2c,d; A3c,d; A4c,d on the basis that a population decline equivalent to 30-49% over 10 years is suspected in the past and projected in the future, owing to habitat loss and harvesting for the pet trade (Snyder et al. 2000). Recently it has been noted that the species appears to be rarely traded in Bolivia, where good numbers are protected in five national parks (B. Hennessey in litt.). This raises the question of whether the population is still in rapid decline.
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Posted in Archive, Central America, North America, Parrots, South America | Tagged | 4 Comments