Talk:Yellow-tailed black cockatoo

Terminology
Should "upper mandible" be called maxilla? I understand in birds the lower beak is the mandible and the upper beak is the maxilla. Snowman (talk) 10:59, 22 February 2010 (UTC)


 * Gosh, I had not thought of that. okay. Casliber (talk · contribs) 11:15, 22 February 2010 (UTC)
 * Re-think: "Upper mandible" sounds a bit strange by comparison with human anatomy, but I suppose most people know what it means. I wonder if it might be better to use commonly used descriptive language: perhaps "upper beak". Snowman (talk) 11:48, 22 February 2010 (UTC)
 * I would agree with that as the two are synonymous to all intents and purposes and one is alot more accessible to readers. Casliber (talk · contribs) 12:50, 22 February 2010 (UTC)

PS: I had forgotten about this article, but I have moved house and there is a flock of these in the area I live -I was thinking about what to plant to attract them :) Casliber (talk · contribs) 11:18, 22 February 2010 (UTC)

For clarification

 * The two subspecies are different in size, so it might be worth adding the lengths of the two recognised subspecies separately, but my book does not give this. Snowman (talk) 00:01, 23 February 2010 (UTC)


 * I agree. I will be able to add some measurements from Higgins tonight (my time), so tomorrow morning UK time. Casliber (talk · contribs) 00:10, 23 February 2010 (UTC)

Speculation on third subspecies
Higgins - i.e. the monster sized HANZAB book - discusses taxonomy and intraspecific variation quite a bit, including Saunders' observations, the fact that these observations have not to date been replicated (i.e. inconsistent further material) and also notes the naming issue - that an old subspecific name whiteae from Gregory Mathews would thus be erected as the new name - it also says the consensus is two subspecies. I am not sure which bit we are thinking is OR here. Casliber (talk · contribs) 02:53, 9 March 2010 (UTC)

PS: It is discussed on page 76 of the Higgins book. I left the commented out note at the bottom of the xanthonotus paragraph > to highlight the referencing. Casliber (talk · contribs) 02:55, 9 March 2010 (UTC)
 * It is unsourced as far as I could see, unless I dig into the code, which I did not do. And the sentence flow did not make it logical that the whole previous section was covered by the statement. -- Kim van der Linde at venus 14:15, 9 March 2010 (UTC)
 * Sorry - I have taken to the commented out segments in the code - I was reluctant to pepper the text with the same inline reference number. Nothing's ever easy.....Casliber (talk · contribs) 19:19, 9 March 2010 (UTC)
 * Cas, I do that myself at times, but this statement was so opposite to the sentence before it, and not logically loinked to the piece with the reference that I did not realize it was one ref. -- Kim van der Linde at venus 03:31, 10 March 2010 (UTC)

For clarification

 * Are there any conservation projects? Such as preserving old trees, or providing suitably sized strong nest boxes where there is a shortage of old trees. Snowman (talk) 11:22, 11 March 2010 (UTC)
 * There is the specific conservation program in the Eyre Peninsula, which is mentioned in the article, but otherwise the species is not considered threatened and so there is no specific program relating to the species. Although there are general conservation measures in trying to protect old-growth forest and large trees for many birds. Casliber (talk · contribs) 20:04, 11 March 2010 (UTC)
 * I see, so the ecosystem is being conserved together with all the animals within. Snowman (talk) 22:57, 11 March 2010 (UTC)
 * Yes. Casliber (talk · contribs) 23:32, 11 March 2010 (UTC)


 * Should alternative names be mentioned at the start of the introduction? - Funereal Cockatoo, Yellow-eared Cockatoo, Yellow-tailed Cockatoo, Wylah. Snowman (talk) 13:14, 11 March 2010 (UTC)


 * I did ponder this - none of these names are really current, they are all fairly antiquated (in the case of the first two), proposed but not used much at all (the third), or quite specific (Wylah is mentioned as an old aboriginal name from the Hunter Region north of Sydney, but really exists only as an alternative name recorded and mentioned in large parrot books). I am not really fussed either way but I'd question they are core material for the lead. It is worth discussing on the birds wikiproject discussion page and seeing what consensus we get. Casliber (talk · contribs) 20:04, 11 March 2010 (UTC)
 * "Wylah" is different to the other names. Is it an Aboriginal name? Is this cockatoo important to the Aboriginal people? Snowman (talk) 23:14, 11 March 2010 (UTC)
 * Yes it is an aboriginal name. I did look and ask extensively about folklore and names of the Yellow-tailed Black Cockatoo in local aboriginal culture, but with little success. Unfortunately the aboriginal population of southeastern Australia has lost much of its culture and language early on in European Settlement. I would love to expand this area. Casliber (talk · contribs) 23:32, 11 March 2010 (UTC)


 * Do pairs bond for "life"? Snowman (talk) 13:15, 11 March 2010 (UTC)


 * Will check what the sources say. Casliber (talk · contribs) 20:04, 11 March 2010 (UTC)
 * In Higgins p. 71, the pair bond is described as "strong" and the species is described as monogamous, however it does not mention anything about pairing for life or clarify whether the same pair remains together for a number of years. Casliber (talk · contribs) 20:11, 11 March 2010 (UTC)


 * Although, the parrot in the video clip is quiet, there is a squawking noise in the background. I have asked the photographer, if he knows if this is another Yellow-tailed Black Cockatoo calling. Something could be added to the caption. Are there any opinions on the squawking? Snowman (talk) 23:12, 11 March 2010 (UTC)


 * I'll have a listen.I agree about noting another bird on the recording. Casliber (talk · contribs) 23:32, 11 March 2010 (UTC)
 * Aviceda has replied on his talk page, I think he say that other Yellow-tailed Black Cockatoo(s) are squawking in the background. Snowman (talk) 21:02, 13 March 2010 (UTC)


 * Is a table for subspecies needed? Snowman (talk) 11:14, 13 March 2010 (UTC)

I have been thinking about the table - overall I think the article looks better without it. A table always strikes me as something definitive, and there are still some big questions about Tasmanian vs SE mainland xanthanotus that don't fit into a table format well. I think it might have merit in some other bird articles though. Casliber (talk · contribs) 19:47, 13 March 2010 (UTC)
 * The image is effectively draft and I stopped working on it when I realised that you were working on the text. The table could be developed. In-the-round I see what you mean. Snowman (talk) 20:21, 13 March 2010 (UTC)
 * NB: I thought it was very good for the ringneck article, and there will be some others - the Herring Gull species complex comes to mind, and maybe the Eclectus Parrot, which I will be working on soon (I know three people with these as a pet and they are lovely birds) Casliber (talk · contribs) 20:40, 13 March 2010 (UTC)
 * It turns out that the prose of the description section has become rather complex. There might be grounds for a table. Snowman (talk) 12:14, 15 March 2010 (UTC)


 * The flow of the xanthanotus subsection is tricky. I thought of an alternative - Gould names it, then placing material on whiteae named by Mathews next - Mathews was a splitter who named alot of varieties on minor differences. Then discussion on differences. Casliber (talk · contribs) 20:48, 13 March 2010 (UTC)
 * I wonder if there is a illustration of the parrot in Gould's book - it might help an expanded history section. Snowman (talk) 21:00, 13 March 2010 (UTC)
 * That's a good idea. I suspect it is old enough to be Public Domain...Casliber (talk · contribs) 21:09, 13 March 2010 (UTC)

there! gotta go now. Casliber (talk · contribs) 21:13, 13 March 2010 (UTC)
 * The link works, but I think it is subscription only. That sort of a book should be elsewhere too. Snowman (talk) 21:17, 13 March 2010 (UTC)


 * Is there any more information on why the second chick often dies. Is it because the parents can not collect the required amount of food? Is it because the first chick is bigger? Snowman (talk) 21:47, 13 March 2010 (UTC)


 * It is a pretty common phenomenon in birds - Eudyptes penguins, eagles, kookaburras etc. I think there are several advantages - an extra egg in case of egg failure to hatch, if food is superabundant, one might get two to fledging. The nesting habits of the YTBC in the wild have not been well studied (those trees are very tall!), so I don't know how much detail we could go into, and little of it is specific to this species. Food for thought as to where to discuss though...Casliber (talk · contribs) 12:49, 14 March 2010 (UTC)
 * It would be interesting to find out if the incubation starts after laying of the first egg or second egg. This would indicate the size difference between the first and second chick. Snowman (talk) 13:17, 14 March 2010 (UTC)
 * Surely incubation starts after the first egg (?) as it needs to be kept warm. I will see what I can find. Wow, you were right. That surprised me. Just found some differential egg measurement notes to add as well. Casliber (talk · contribs) 23:07, 15 March 2010 (UTC)
 * A newly laid egg can even be kept in a fridge (above freezing point) for about a week or slightly longer and still be ok. It is only when the chick in the egg starts growing that the egg needs to be kept warm. I thought everyone knew that. Snowman (talk) 23:51, 15 March 2010 (UTC)
 * Nope, I didn't, so I have learnt something new today :) Casliber (talk · contribs) 00:35, 16 March 2010 (UTC)

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বাংলাদেশের রেল পথ
বাংলাদেশের রেল পথ খুবই নিরাপত্তা বহন করে এবং দূর্গন্ধ মুক্ত ও শান্তি প্রদান করে। বাংলাদেশ অর্থের দিক দিয়ে এখন অনেক এগিয়ে চলছে। মো.আমির হামজা (talk) 05:54, 6 July 2019 (UTC)

Yellow tailed bird
So beautiful, JAYU YEOLA (talk) 09:15, 6 July 2019 (UTC)

AMSL
Great article,

"Distribution and habitat" refers to AMSL. Is this a typo for MASL? Either way, I don't think this is a commonly understood abbreviation, so suggest expanding it. Adrian J. Hunter(talk•contribs) 09:41, 6 July 2019 (UTC)
 * Good catch and unabbreviated Cas Liber (talk · contribs) 20:36, 6 July 2019 (UTC)

Also, "Relationship with humans" says the bird has been listed as vulnerable in SA. Ideally this should be is or was formerly. Adrian J. Hunter(talk•contribs) 09:44, 6 July 2019 (UTC)
 * also tweaked Cas Liber (talk · contribs) 20:36, 6 July 2019 (UTC)