Latest IOC Diary Updates (6 Viewers)

[jts1882]

That's a confusing way of explaining it. The Huambo Cisticola (Cisticola bailunduensis) is split from the Rock-loving Cisticola and the remaining subspecies of Rock-loving Cisticola lumped with the Lazy Cisticola, There is no need for bailunduensis to be a Lazy Cisticola even if transitionally.

If I followed correctly, the before and after are:

Lazy Cisticola (Cisticola aberrans: nyika, lurio, aberrans, minor )
Rock-loving Cisticola (Cisticola emini: admiralis, petrophilus, emini, bailunduensis)

Lazy Cisticola (Cisticola aberrans: nyika, lurio, aberrans, minor, admiralis, petrophilus, emini )
Huambo Cisticola (Cisticola bailunduensis)

 

[gusasp]

Jun 29 Post split of Maranon Gnatcatcher from Tropical Gnatcatcher.

 

[jhopkins]

Rock-loving Cisticola	Cisticola emini	DEL	AL		Rock-loving Cisticola Cisticola emini (including petrophilus and admiralis), originally recognized by Sibley & Monroe (1970), is lumped with Lazy Cisticola Cisticola aberrans. These allopatric taxa vary only slightly in morphology, but they are similar in vocalizations and ecology (Dowsett & Dowsett-Lemaire F. 1993). The two forms are usually treated as conspecific (Dickinson & Christidis 2014; del Hoyo & Collar 2016; HBW/BirdLife).
Huambo Cisticola	Cisticola bailunduensis	ADD	AD	Lazy Cisticola	Huambo Cisticola Cisticola bailunduensis is split from Lazy Cisticola (formerly Rock-loving Cisticola) based on significantly different vocalizations coupled with morphological and ecological differences (del Hoyo & Collar 2016; HBW/BirdLife).

That is so unkind....I have waited years for Huambo to be split....but when it is, they lump Lazy and Rock-loving so I'm back where I started!

 

[Viktor Björkert]

Jun 29 Accept split of Taczanowski's Brushfinch from Slaty Brushfinch.

Jun 29 Accept split of Maranon Sparrow from Black-capped Sparrow.

 

[Ian Lewis]

That is so unkind....I have waited years for Huambo to be split....but when it is, they lump Lazy and Rock-loving so I'm back where I started!

I think the main problem here is the loss of of the English name Rock-loving Cisticola.

No longer will bird tour leaders be able to play some Springsteen to call it in

 

[Larry Sweetland]

No longer will bird tour leaders be able to play some Springsteen to call it in

Although some could argue that this alone is sufficient reason for the lump

 

[Markus Lagerqvist]

Mindoro Island Thrush	Turdus mindorensis	ADD	AS	Izu Thrush	Monotypic Mindoro Island Thrush T. mindorensis is split from T. poliocephalusis. It is the most deeply basal taxon in the Island Thrush complex (Reeve Clade A).
Luzon Island Thrush	Turdus thomassoni	ADD	AS	Mindoro Island Thrush	Luzon Island Thrush T. thomassoni (including mayonensis) is split from T. poliocephalus. It is the second most basal clade in the Island Thrush radiation (Reeve et al. Clade B).
Mindanao Island Thrush	Turdus nigrorum	ADD	AS	Luzon Island Thrush	Mindanao Island Thrush T. nigrorum (including malindangensis, katanglad, and kelleri) is split from T. poliocephalus. It corresponds to Clade C of Reeve et al. (2023).
Wallacean Island Thrush	Turdus schlegelii	ADD	AS	Mindanao Island Thrush	Wallacean Island Thrush Turdus schlegelii (including sterlingi, celebensis, and hygroscopus) is split from T. poliocephalus. It corresponds to the major subclade of Clade D in Reeve et al. (2023).
Christmas Island Thrush	Turdus erythropleurus	ADD	AS	Wallacean Island Thrush	Monotypic Christmas Island Thrush Turdus erythropleurus is split from T. poliocephalus. It forms a distinct subclade of Clade D of Reed et al. (2023). It differs from other taxa within that clade by moderate differences in plumage in addition to its unique biogeography, and different voice.
Sundaic Island Thrush	Turdus javanicus	ADD	AS	Christmas Island Thrush	Sundaic Island Thrush Turdus javanicus (including loeseri, indrapurae, fumidus, stresemanni, whiteheadi, and seebohmi) is split from T. poliocephalus. It corresponds to Clade E of Reeve et al. (2023).
Moluccan Island Thrush	Turdus deningeri	ADD	AS	Sundaic Island Thrush	Sundaic Island Thrush Turdus javanicus (including loeseri, indrapurae, fumidus, stresemanni, whiteheadi, and seebohmi) is split from T. poliocephalus. It corresponds to Clade E of Reeve et al. (2023).
Papuan Island Thrush	Turdus papuensis	ADD	AS	Moluccan Island Thrush	Papuan Island Thrush Turdus papuensis (including versteegi and canescens) is split from T. poliocephalus. It correstponds to Clade G of Reeve et al. (2023).
Bismarck Island Thrush	Turdus heinrothi	ADD	AS	Papuan Island Thrush	Bismarck Island Thrush Turdus heinrothi (including beehleri and tolokiwae) is split from T. poliocephalus. It correstponds to Clade H of Reeve et al. (2023).
Bougainville Island Thrush	Turdus bougainvillei	ADD	AS	Bismarck Island Thrush	Monotypic Bougainville Island Thrush Turdus bougainvillei is split from T. poliocephalus. It correstponds to Clade I of Reeve et al. (2023).
Solomons Island Thrush	Turdus kulambangrae	ADD	AS	Bougainville Island Thrush	Solomons Island Thrush Turdus kulambangrae (including sladeni) is split from T. poliocephalus. It correstponds to Clade J of Reeve et al. (2023).
Vanikoro Island Thrush	Turdus vanikorensis	ADD	AS	Solomons Island Thrush	Vanikoro Island Thrush Turdus vanikorensis (including rennellianus, efatensis, becki, malekulae, mareensis, placens, and whitneyi) is split from T. poliocephalus. It correstponds to Clade K of Reeve et al. (2023).
White-headed Island Thrush	Turdus pritzbueri	ADD	AS	Vanikoro Island Thrush	White-headed Island Thrush Turdus pritzbueri (including albifrons) is split from T. poliocephalus. It forms a distinctive subclade of Clade L of Reeve et al. (2023).
New Caledonian Island Thrush	Turdus xanthopus	ADD	AS	White-headed Island Thrush	Monotypic New Caledonian Island Thrush Turdus xanthopus is split from T. poliocephalus. It forms a basal branch to the remaining species in Clade L of Reeve et al (2023).
Tasman Sea Island Thrush	Turdus poliocephalus	ADD	AS	New Caledonian Island Thrush	Tasman Sea Island Thrush Turdus poliocephalus (including vinitinctus) are both extinct Tasman Sea island edemics that share a branch in Clade L of Reeve et al (2023).
Samoan Island Thrush	Turdus samoensis	ADD	AS	Tasman Sea Island Thrush	Monotypic Samoan Island Thrush Turdus samoensis is split from T. poliocephalus. It forms a short branch in Clade L of Reeve et al. (2023).
Fiji Island Thrush	Turdus ruficeps	ADD	AS	Samoan Island Thrush	Fiji Island Thrush Turdus ruficeps (including hades, tempesti, vitiensis and layardi) is split from T. poliocephalus. Its subspecies, though relatively variable in plumage, form a terminal polytomy within Clade L of Reeve et al. (2023).

 

[Xenospiza]

Small copy/paste error there, I assume Moluccan Island Thrush will be "Clade F"?

Moluccan Island Thrush

Turdus deningeri

ADD

AS

Sundaic Island Thrush

Sundaic Island Thrush Turdus javanicus (including loeseri, indrapurae, fumidus, stresemanni, whiteheadi, and seebohmi) is split from T. poliocephalus. It corresponds to Clade E of Reeve et al. (2023).

 

[DDonsker]

Small copy/paste error there, I assume Moluccan Island Thrush will be "Clade F"?

Moluccan Island Thrush

Turdus deningeri

ADD

AS

Sundaic Island Thrush

Sundaic Island Thrush Turdus javanicus (including loeseri, indrapurae, fumidus, stresemanni, whiteheadi, and seebohmi) is split from T. poliocephalus. It corresponds to Clade E of Reeve et al. (2023).

Whoops. Thanks. Will fix.

Comment should read: Moluccan Island Thrush Turdus deningeri is split from T. poliocephalus. It correstponds to Clade F of Reeve et al. (2023).

 

[Larry Sweetland]

So are there now 16 extant species comprising what was Island Thrush. (ie the number of extant species goes up by 15?)

 

[njlarsen]

So are there now 16 extant species comprising what was Island Thrush. (ie the number of extant species goes up by 15?)

There are 17 entries in post 727?
Niels

 

[Larry Sweetland]

There are 17 entries in post 727?
Niels

Yes, but isn't one of them the original poliocephalus, which it says has two forms which are extinct? 🤔

 

[njlarsen]

Yes, but isn't one of them the original poliocephalus, which it says has two forms which are extinct? 🤔

I overlooked that, sorry!

 

[Xenospiza]

Yes, but isn't one of them the original poliocephalus, which it says has two forms which are extinct? 🤔

I thought T. pritzbueri was extinct as well, but there seems to be some contention.
Anyway, after reading the paper, anything east of PNG seems to be very recent. Clade H–L could just as well have been handled as "Pacific Island Thrush".

 

[Andy Adcock]

Jul 2 Post split of Grey-browed Wren from Plain-tailed Wren.

 

[Ian Lewis]

Jul 2 Post split of Grey-browed Wren from Plain-tailed Wren.

Is the form that has been referred to as 'Mantaro Wren' from Central Peru included in Grey-browed Wren?

 

[TomDerutter]

The Clements update also splits Gray-browed Wren
'Mantaro Wren' is there (seperately) listed as undescribed

 

[Ian Lewis]

The Clements update also splits Gray-browed Wren
'Mantaro Wren' is there (seperately) listed as undescribed

Thank you. The map in HBW's Birds of the World for Grey-browed Wren shows a small dot in Central Peru. That's why I thought 'Mantaro Wren' was part of Grey-browed

 

[Jacana]

Thank you. The map in HBW's Birds of the World for Grey-browed Wren shows a small dot in Central Peru. That's why I thought 'Mantaro Wren' was part of Grey-browed

This is from the BirdsoftheWorld account for Plain-tailed Wren:

The southernmost subspecies, schulenbergi, is endemic to northern Peru, south of the Río Marañón, in the departments of Amazonas and San Martín. The apparently isolated population in central Peru (Junín) is provisionally considered to represent schulenbergi.

 

[sicklebill]

I thought T. pritzbueri was extinct as well, but there seems to be some contention.
Anyway, after reading the paper, anything east of PNG seems to be very recent. Clade H–L could just as well have been handled as "Pacific Island Thrush".

Albifrons on Erromango seems to be placed with White-headed Island Thrush T. pritzbueri, the latter nominate extinct but albifrons is still extant with one recent record above 300m (Dutson Birds of Melanesia 2011)