Latest IOC Diary Updates (3 Viewers)

[Xenospiza]

So far as can be assessed from publicly available barcode data (and with the caveat that there are no such data for the Hawaiian taxon), the four pied stilt species appear to have reciprocally monophyletic mtDNA, with distances admittedly smallish (~1% of cox1), but similar to those between avocet species (andina vs. americana, novaehollandiae vs. avosetta). (And clearly much larger than between many of the Haematopus taxa that are currently regarded as species.)
The distance between H. novaezelandiae and H. leucocephalus is distinctly smaller (~0.4% of cox1) than the distance separating any of the four pied stilt species.

Thanks Laurent. So treating Pied and Black Stilt as separate species should mean that the other stilts also deserve that status...

 

[Markus Lagerqvist]

Yet another proposed lump 😭
Mar 12 Post proposed lump of Fanti Drongo with Velvet-mantled Drongo.

 

[Xenospiza]

Yet another proposed lump 😭
Mar 12 Post proposed lump of Fanti Drongo with Velvet-mantled Drongo.

A really thin split anyway: http://macroecointern.dk/pdf-reprints/Fuchs_ZS_2018.pdf

 

[Jacana]

Mar 13 Post proposed lump of Puna Canastero with Streak-backed Canastero

 

[Xenospiza]

Mar 13 Post proposed lump of Puna Canastero with Streak-backed Canastero

See taxonomic note 44 in Birds of Argentina by Pearman & Areta: "It seems likely that Puna (including "Córdoba") are better merged with Streak-backed Canastero, but more research is needed".
But as we know at the SACC, "more research is needed" can only be used against SPLITS, not against LUMPS (add appropriate smiley).

 

[Jim LeNomenclatoriste]

Not a update but:

Move the Speckled Spinetail (Cranioleuca gutturata) to Thripophaga as Thripophaga gutturata

Phylogenetic analysis shows that Speckled Spinetail does not belong in Cranioleuca but rather it is a basal taxon within the Thripophaga clade (Derryberry et al. 2011; Harvey et al. 2020). Move from Cranioleuca to Thripophaga.

I also think that the only species in the genus Roraimia, Roraimia adusta, should be moved to the genus Thripophaga.

 

[mb1848]

I also think that the only species in the genus Roraimia, Roraimia adusta, should be moved to the genus Thripophaga.

Instead I think you should keep Roraimia and add Thripophaga amacurensis to it.
Thripophaga amacurensis also appears to differ from T. cherriei in having 12 rather than 10 functional rectrices OD . Roraimia adusta also has 12 rectrices.
https://digitallibrary.amnh.org/bit...dfSource/nov/N0380.pdf?sequence=1&isAllowed=y .

 

[Jim LeNomenclatoriste]

add Thripophaga amacurensis to it.

It, I rather see it as a member of an undescribed genus

 

[Jim LeNomenclatoriste]

Nov 6 Post proposed lump of Beesley's Lark with Spike-heeled Lark.

Nov 6 Post proposed lump of Benguela Long-billed Lark with Karoo Long-billed Lark.

Nov 7 Post proposed lump of Singing Bush Lark with Horsfield's Bush Lark.

For all these species, no strong support for any lump. Welcome back to them.

 

[Xenospiza]

Alström uses the dreaded "more research is needed", but especially beeslyi is best treated separately:

Although three of these six pairs have more recent divergence times (0.9–1.8 My) than any of the sympatric species pairs, three of them (C. a. beesleyi–C. albofasciata, C. s. benguelensis–C. subcoronata and Mirafra j. cantillans–M. javanica) have estimated divergence times (3.8 My, 2.8 My and 2.4 My, respectively) that overlap those of several sympatric species pairs. Moreover, if C. curvirostris and C. brevirostris are treated as conspecific, Eastern Long-billed Lark (C. semitorquata) should perhaps be included in that species, as it is only slightly more diverged. As these analyses are based mainly or exclusively on mitochondrial DNA, more comprehensive analyses are warranted to evaluate the taxonomic status of these taxa.

 

[Jim LeNomenclatoriste]

Alström uses the dreaded "more research is needed", but especially beeslyi is best treated separately:

Although three of these six pairs have more recent divergence times (0.9–1.8 My) than any of the sympatric species pairs, three of them (C. a. beesleyi–C. albofasciata, C. s. benguelensis–C. subcoronata and Mirafra j. cantillans–M. javanica) have estimated divergence times (3.8 My, 2.8 My and 2.4 My, respectively) that overlap those of several sympatric species pairs. Moreover, if C. curvirostris and C. brevirostris are treated as conspecific, Eastern Long-billed Lark (C. semitorquata) should perhaps be included in that species, as it is only slightly more diverged. As these analyses are based mainly or exclusively on mitochondrial DNA, more comprehensive analyses are warranted to evaluate the taxonomic status of these taxa.

It's like he's saying "there are species, until proven otherwise" XD

 

[MJB]

Mar 23 Repost link to Multilingual version to include revised Czech names for non-passerines, and Dutch and Swedish names for all species.

MJB

 

[Markus Lagerqvist]

Mar 25 Post proposed Sp. nov. Ibera Seedeater.

Sp. nov.: Di Giacomo & Kopuchian, 2016. Recognition as specifically distinct supported by distinctive plumage and vocalizations, unique breeding habitat, and genomic data (Galluppi-Selich et al. 2018; Browne et al. 2021; Turbek et al. 2021; SACC 953; HBW/BirdLife).

 

[Markus Lagerqvist]

Mar 25 Post proposed split of Orange-crested Cockatoo from Yellow-crested Cockatoo.

 

[Paul Clapham]

Mar 25 Post newly described Buccanodon dowsetti tentatively as a subspecies of Yellow-spotted Barbet B. duchaillui.

 

[MJB]

Mar 26 Post proposed split of West African Pied Hornbill from Congo (African) Pied Hornbill.

Mar 26 Post proposed lump of White-chested Tinkerbird with Yellow-rumped Tinkerbird.
MJB

 

[Jim LeNomenclatoriste]

Mar 25 Post newly described Buccanodon dowsetti tentatively as a subspecies of Yellow-spotted Barbet B. duchaillui.

Curiously, not notified in lump/split page

 

[Markus Lagerqvist]

It's under "Subspecies Updates" instead.

 

[mb1848]

Mar 26 Post proposed split of West African Pied Hornbill from Congo (African) Pied Hornbill.
Agreement from Schlegel in 1881.
"A fine series of Buceros semifasciatus furnishes the ultimate proof that this species cannot be confounded with Buceros fasciatus , as has been proposed by certain modern ornithologists."
https://upload.wikimedia.org/wikipe...Leyden_Museum_(IA_notesfromleydenm03rijk).pdf .

 

[Paul Clapham]

It's under "Subspecies Updates" instead.

Although it was made a species by HBW Birdlife in 2020.