IOC 2.9 draft (1 Viewer)

viator · Apr 18, 2011

IOC has Philippine Magpie-Robin (C. mindanensis) as an accepted split from Oriental Magpie-Robin. As far as I know mindanensis was the only subspecies of OMR in the Philippines - is that correct?

Also any ideas on where subspecies in Sabah (or the rest of Borneo) now fit in?

Draft here: http://www.worldbirdnames.org/updates-spp.html

njlarsen · Apr 18, 2011

Clements has Copsychus saularis deuteronymus for the northern Philippines and Copsychus saularis mindanensis for southern Philippines and Sulu archipelago.

Niels

Markus Lagerqvist · Apr 18, 2011

njlarsen said:
Clements has Copsychus saularis deuteronymus for the northern Philippines and Copsychus saularis mindanensis for southern Philippines and Sulu archipelago.

Niels

In the study by Sheldon et. al. that form the basis of the split they conclude that "The two subspecies of C. mindanensis (mindanensis and deuteronymus) do not form distinct genetic or geographical groups and are morphologically distinguished from one another only by a minor plumage character: the underparts of females of C. mindanensis deuteronymus have a buff wash. We recommend that deuteronymus no longer be recognized, rendering C. mindanensis monotypic."

Markus Lagerqvist · Apr 18, 2011

viator said:
Also any ideas on where subspecies in Sabah (or the rest of Borneo) now fit in?

The bornean subspecies are retained within Oriental Magpie-Robin (C. saularis).

Richard Klim · Apr 18, 2011

Markus Lagerqvist said:
In the study by Sheldon et. al. that form the basis of the split they conclude that "The two subspecies of C. mindanensis (mindanensis and deuteronymus) do not form distinct genetic or geographical groups and are morphologically distinguished from one another only by a minor plumage character: the underparts of females of C. mindanensis deuteronymus have a buff wash. We recommend that deuteronymus no longer be recognized, rendering C. mindanensis monotypic."

Collar 2005 (HBW 10) also doesn't recognise deuteronymus ("too weak to merit recognition and thus merged with mindanensis"):
ibc.lynxeds.com/species/oriental-magpie-robin-copsychus-saularis

Richard Klim · Apr 22, 2011

More changes now in the pipeline for v2.9:
www.worldbirdnames.org/updates-PS.html
www.worldbirdnames.org/updates-spp.html
www.worldbirdnames.org/updates-tax.html

Kirk Roth · Apr 22, 2011

Some interesting tidbits added to the notes, for example, an expanded justification of Ridgeway's Swallow and a forthcoming work on a Cuban species of Eastern Meadowlark.

Also interesting is that the Mountain Chickadee split seems that it will hinge on the AOU decision... not the approach they took for the Western Scrub Jay or Northern Pygmy Owl, for example.

www.worldbirdnames.org/updates-PS.html

Mysticete · Apr 22, 2011

Probably because the evidence for the split is much weaker than for the Scrub-Jay. I am doubtful a split will occur, at least from this proposal. Transvolcanic Jay also has the same note by it.

Some other tidbits:

Other splits/new species that have been accepted but not made it onto the species update page include:

Tsingy Wood Rail
Black-banded Fruit-Dove
Bronze-winged Woodpecker
Scaled-backed Antbird split into 2 species
Sakhalin Warbler (Another sad story...heard in Hokkaido but not seen)

Hen Harrier has also made it onto the Proposed split page, should make some people happy here

They have added version numbers to the proposed split pages, which now makes new additions much easier to find.

Ethiopian Gray (Grey) Flycatcher has been lumped, Parisoma is resurrected in the common name for a couple of species, and there are some other minor changes to common and latin names

Oh, and I noticed that a Proposed split of Chestnut-tipped Toucanet also hinges on AOU. I don't think any current AOU proposal covers this, so perhaps this is in Proposal D?

Mysticete · Apr 22, 2011

Whiteley's Toucanet now has an AS by it, with the AOU reference removed (probably put there in error?)

EDIT: I just noticed that Transvolcanic Jay and Bailey's Chickadee now have AS (AOU?) by them, and no longer "if AOU" which I think was what was up this morning. No clue what this means...

njlarsen · Apr 23, 2011

There now is an explanation at the top of the page which says that "NOTE: Some proposed splits on this list are also the subject of current proposals under review by the AOU's NACC. Our decisions on those cases (marked AOU?) will remain tentative until the NACC completes its deliberation, out of respect for their process. We may agree with and follow their decision, or not (FG)."

Niels

Peter Kovalik · Apr 23, 2011

Version 2.9 (DRAFT)

Responding to many compelling requests, we have completed a draft of species (and subspecies) that have become extinct since the mid-1600's (17th Century). We intend to incorporate these into the IOC World Bird List...
http://www.worldbirdnames.org/updates.html

Mysticete · Apr 23, 2011

Hhhmm...I think the number of provisions they have placed on what extinct species severly limits the usefulness of this list. I tally up ~100 species on this list. As a comparison, it has been estimated that probably 2000 species in the South Pacific ALONE have gone extinct in historic times. I think the current list severly underestimates the biodiversity crisis we are currently in.

Markus Lagerqvist · Apr 24, 2011

Peter Kovalik said:
Version 2.9 (DRAFT)

Responding to many compelling requests, we have completed a draft of species (and subspecies) that have become extinct since the mid-1600's http://www.worldbirdnames.org/updates.html

Great initiative!

But I was very surprised to see Hypsipetes siquijorensis monticola, the Cebu race of Streak-breasted Bulbul, included on the list of extinct species and subspecies.

I saw this bird only two months ago and I really hope it hasn't gone extinct since then...

I wonder how it ended up on this list??

Richard Klim · Apr 24, 2011

Cebu Streak-breasted Bulbul

Markus Lagerqvist said:
But I was very surprised to see Hypsipetes siquijorensis monticola, the Cebu race of Streak-breasted Bulbul, included on the list of extinct species and subspecies.
I saw this bird only two months ago and I really hope it hasn't gone extinct since then...
I wonder how it ended up on this list??

Cornell/Clements lists monticola as extinct; Dickinson 2003 (H&M 3) as possibly extinct.

BLI: "Although considered extinct on Cebu for many years it was recently rediscovered at Tabunan [A. Pierce verbally (2001)]."
www.birdlife.org/datazone/speciesfactsheet.php?id=7292

Fishpool & Tobias 2005 (HBW 10): "On Cebu, monticola is very rare and often thought extinct, but a few recent sightings at or near the Tabunan reserve; perhaps especially threatened because more reliant on tall forest; this species' habitat niche in scrub appears to have been usurped on Cebu by I. philippinus, and the spread of the dominant form perhaps underlies the near-extinction of monticola."

Markus Lagerqvist · Apr 24, 2011

Richard Klim said:
Cornell/Clements lists monticola as extinct, and Dickinson 2003 (H&M 3) as possibly extinct.

You're right, now I remember Clements also lisiting it as extinct.

Strange to make a decision to officially list sp/ssp as extinct based on no real evidence. In the field guide (Kennedy et. al.) is says very rare and nearly extinct. And a lot of other species with no sitings for many centuries are not listed as extinct.

The Cebu Streak-breasted Bulbul is very regular at Tabunan (I've seen it there on both my visits; 2003 and 2011) and it also occurs at Nug-as forest in Alcoy.

A similar example is Obsucre Berrypecker, still listed in Clements as "Known from 2 specimens ca 1900 from mts. of se New Guinea" although it's seen regularly by birders visiting PNG.

Richard Klim · Apr 24, 2011

Possibly extinct...

Markus Lagerqvist said:
You're right, now I remember Clements also lisiting it as extinct.
Strange to make a decision to officially list sp/ssp as extinct based on no real evidence.

But it can be difficult to prove an extinction. For that reason, I think BLI's recent introduction of a new intermediate threat category – CR (PE), Critically Endangered (Possibly Extinct) – is a good idea (although only applied at species level):
www.birdforum.net/showpost.php?p=1984074&postcount=57

Markus Lagerqvist · Apr 24, 2011

Richard Klim said:
But it can be difficult to prove an extinction. [/url]

Yes, you're certainly right, I didn't express myself very clearly there.

What I meant to say was that it's unfortunate for world lists and other authorities to rush to declare a species extinct on very loose ground as they obviously do sometimes.

Another example from Clements is Banggai Crow (extinct accoring to Clements), a species restricted to an area very seldom visited by birders or researchers, not surprising there's been so few records...

njlarsen · Apr 24, 2011

A couple of subspecies for which the category mentioned by Richard [CR (PE), Critically Endangered (Possibly Extinct)] would be a good idea:
Troglodytes aedon guadeloupensis - not recorded since 1973 (given what I know of the ornithological activity, I would be extremely surprised if this one was extant)
Troglodytes aedon martinicensis - not recorded since 1900

and one species: Leucopeza semperi - Semper's Warbler - not seen with certainty since 1961, and I have talked with someone who have looked for it.

Niels

Edit: just read the BLI account for Semper's Warbler - they say that the searches have not been thorough enough.

Peter Kovalik · Apr 26, 2011

Rich update today :t:
http://www.worldbirdnames.org/updates-spp.html
http://www.worldbirdnames.org/updates-PS.html

Peter Kovalik · May 15, 2011

Mascarene Parrot

Peter Kovalik said:
Version 2.9 (DRAFT)

Responding to many compelling requests, we have completed a draft of species (and subspecies) that have become extinct since the mid-1600's (17th Century). We intend to incorporate these into the IOC World Bird List...
http://www.worldbirdnames.org/updates.html

What is the correct scientific name for Mascarene Parrot?

By IOC Extinct taxa Draft1 - Mascarinus mascarin

Peters Checklist Vol. III, p. 241 - Mascarinus mascarin (Linné)
Psittacus mascarin. Linné, Mantissa, 1771, p. 524. ("Mascarina.")

BirdLife - Mascarinus mascarinus

On wikipedia:
"Linnaeus had the habit of abbreviating species names. Thus, his original description is of Psittacus mascarin., dropping the ending -us. Sometimes, the scientific name is thus written Psittacus mascarin, but that is neither in agreement with the current standard of nomenclature nor with the one applied by Linné himself."

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