Talk:Bird migration

message: I'm wondering if people know the status of research for birds that use the night sky to navigate, orienting themselves by the rotation of the celestial sphere (,)? It should probably be added - this isn't my field, though. SamuelRiv (talk) 16:17, 29 August 2010 (UTC)
replies: text: Good idea!  We at WP:BIRD will try to work something in. MeegsC | Talk 00:17, 30 August 2010 (UTC)

text: Nocturnal migration would certainly be an interesting subject.  My layman's understanding is that it has more to do with weather patterns and magnetite bird navigation (essentially the same as daytime navigation) -- but I could be wrong. ~E 74.60.29.141 (talk) 19:55, 26 September 2012 (UTC)
replies: text:  Hmm, if birds fly around the clock, then part of the journey is at night, but the fact that they fly (and make flight calls) at night doesn't make for a separate subject, nocturnal migration, unless there's more to it than that. As for the tropical, etc, yes, the article probably needs to be more global in scope. Chiswick Chap (talk) 13:26, 26 March 2013 (UTC)
thread_title:  Navigation by stars 

message: It seems a terrible pity that this article is still not a GA. I've marked up the uncited paragraphs ... quite a few. The coverage is quite good, however, and the writing of good quality, mostly. Anyone fancy joining me in a collective Good Article push? Chiswick Chap (talk) 10:35, 24 March 2013 (UTC)
thread_title: Making this a Good Article...

message: Should this article cover moult migration as well? --Artman40 (talk) 13:23, 8 October 2014 (UTC)
replies: text:  Yes, why not, an interesting minor aspect in species like the shelduck. There are plenty of reliable sources. Go right ahead. Chiswick Chap (talk) 14:09, 8 October 2014 (UTC)
replies: text: But where to find the sources to work with?  --Artman40 (talk) 15:26, 11 October 2014 (UTC)
replies: text:  You're kidding, right? Well, a library; JSTOR; the Internet; bird journals. Chiswick Chap (talk) 16:32, 11 October 2014 (UTC)
replies: text: Shelduck are not the only animals to migrate before moulting. Many birds migrate to reeded areas and other wetlands. Just reliable sources are needed. --Artman40 (talk) 22:25, 11 October 2014 (UTC)
replies: text:  You are free to seek examples as you please; finding sources is the normal and principal work of Wikipedia editors, that's what we do here. Shelduck are however certainly the best known example. Chiswick Chap (talk) 08:00, 12 October 2014 (UTC)
thread_title: Moult migration

message: The following has been proposed: "Around 3000 BC, Kalidasa tells about the 'valaha' birds going back to Manasarovar from south India in the shape of a garland after breeding.The Meghaduta of Kalidasa, sloka 10." This doesn't seem exactly to be supported by the source as translated; possibly it's clearer in another translation or in the original. Help appreciated. Chiswick Chap (talk) 15:51, 12 October 2014 (UTC)
thread_title: Kalidasa?

message: Per a Tropical Wildlife Ecology class assignment, me and a group of fellow students have been assigned the task of expanding the topic of altitudinal migration into its own wikipedia page. A rough draft of the information can be found at https://en.wikipedia.org/wiki/User:Larharmon/sandbox. Any feedback about what needs to be added, or any editing tips, would be much appreciated. Thank you.
Larharmon (talk) 14:48, 23 October 2014 (UTC)
replies: text:  Please find out how to do referencing nicely for a scientific article - read some Featured Articles such as Immune system to see how they do it. Here's one, placed in 'nowiki' tags so it appears here as if being edited:  There are many allowable styles of citation; this one with the 'cite' template is tidy, systematic and comprehensive. If you go to your 'Preferences' menu item and select 'Gadgets', then check 'refToolbar' under 'Editing', you will get a 'cite' button on your editing toolbar that makes this easy. Chiswick Chap (talk) 17:09, 23 October 2014 (UTC)
replies: text:  The referencing will definitely be fixed before the page goes live! Thank you for the sources; they're very helpful. I'm sorry that the current referencing system is rough right now, we were focused on expanding the information and gathering our sources. Again, thank you so much for the sources, and for the feedback. Larharmon (talk) 17:03, 5 November 2014 (UTC)
thread_title: Expanding Altitudinal Migration

message: I see the following text (which actually contains a citation, if not elegantly formatted) has been cut from the article:
:: /* Bird Migration Festivals */
:: Bird migrations are celebrated through activities and festivals across the globe. One of the largest of these events, International Migratory Bird Day (IMBD), highlights the migrations of hundreds of bird species in the Western Hemisphere. International Migratory Bird Day was created in 1993 to highlight the threats to migratory bird populations, to increase public awareness of migratory birds, and to motivate public participation in their conservation. Visit International Migratory Bird Day  for more information.
Clearly the contributor did not put this too well; there may be a CoI involved, and it looks like an advert as well. However, it is (surely) a valid aspect of the subject, along with human fascination with migration through the centuries; the phenomenon of bird tourism, with birders gathering (I'll try to avoid puns here) at major coastal sites during migration periods to watch the migrants arrive; the establishment of observatories at sites like Dungeness, Portland Bill, Skokholm to study them in detail. In that context, the bird day might seem a necessary element of the topic. Perhaps there is material here to build a substantial and informative section of the article. All the best, Chiswick Chap (talk) 09:02, 17 January 2015 (UTC)
thread_title: Human aspects

message: There is a map with the caption: "Migration routes and countries with illegal hunting in Europe." There are several problems with it.
1) The map shows Europe, but also parts or all of Africa, asia, and North America.
2) Countries are colored several different ways on the map. But there is no key to explain what the colors mean.
3) The migration routes themselves have no indication of what is migrating along the route.
As it stands, I don't think the map serves much purpose, for the above reasons. I recommend deleting it, unless it can be improved. GeneCallahan (talk) 21:09, 19 October 2016 (UTC)
thread_title:  Delete map? 

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thread_title:  External links modified 

message: The section, Nocturnal migration in smaller insectivorous birds, is currently a subsection in the section: Long-distance migration. There are a couple of things that are misleading about the title and placement of this section discussing nocturnal migratory behavior in birds. Both passerines and non-passerines participate in nocturnal migration, not just 'small insectivorous birds.' For example, the American Bittern is a common nocturnal migrant in the North Eastern United States, while also being a non-passerine and not technically a small insectivorous bird. Second, nocturnal migratory behavior does not occur in Long-distance migrants alone. It also occurs in short-distance, aka facultative, migrants. An example of this would be the Black-capped Chickadee, which has been recorded giving nocturnal flight calls while making short-distance movements to account for changes in food availability or weather. Would it be possible that this section could be given a more technically accurate title, and moved to a new section, perhaps elevating it to its own section or moving it to a subsection under General Patterns? I would think an appropriate title could simply be: 'Nocturnal Migration,' or could perhaps include terms such as 'behavior,' 'ecology,' or 'strategy.' Gld44 (talk) 05:18, 7 November 2017 (UTC)
thread_title:  Placement and title of section: Nocturnal migration in smaller insectivorous birds 

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thread_title:  External links modified 

message: Regarding the statement in the fourth paragraph of this section : Look at the map (see ref-48 https://www.geese.org/gsg/Gorid.htm ) to see that the passage of brent geese via staging areas on the White sea is in fact on a direct line (arc) from Siberian breeding (summer) areas to European wintering areas. 
* Hence this is not a good example of migration detours = in fact it is a good example of direct migration, stopping to use resources found en route... what say you, fellow wikipedians ? Can someone enlighten me ?  Unless there are serious  objections from you, I will delete this information and reformulate the paragraph. -- jw (talk) 21:44, 20 January 2021 (UTC)
replies: text:  Hi , recall that the world is round. The most direct route on the surface of a sphere is a great circle, which will appear as a curve on rectangular map projections. On the map here, you can see at once that the "arc" from Taymyr to the Netherlands does not hug the coast. The example is valid. Hope this helps. All the best, Chiswick Chap (talk) 21:57, 20 January 2021 (UTC)
replies: text:  hello  yes ... I am aware of and admit to not mentioning the 'great circle' argument above. IMO the paragraph ought to (at least) explain exactly how the example is valid. Note also that the difference between the great circle from Waddenzee or western France to  Taymyr and the actual coast/wetlands-hugging route used by the geese is (only) of the order of 6-10% ... and if we take a neighbouring population of the same species breeding somewhat nearer than Taymyr, this reduces to only ~3%. I confirm that I intend to -1- improve the formulation and -2- find and document a more convincing example of a detour ... probably B. bernicla nigricans would be interesting (~60%). I'll propose it here first. -- jw (talk) 09:39, 21 January 2021 (UTC)

text:  OK. What is actually needed is a source that specifically discusses detours, and we must in that case use the detour(s) discussed by the source. Chiswick Chap (talk) 09:46, 21 January 2021 (UTC)
replies: text:  hello  et al., after much delay I have made some modifications, regarding B. bernicla bernicla. I hope you approve! I note that - -1- I don't actually have a source that discusses detours per se so I added a good one (IMO) which details the flyways for all three subspecies of the brent goose. -2- I may later include the example of B.b/nigricans. -3- My previous point about B.b.bernicla was (and still is) that this subspecies is not a good example of a detour, as they are simply following short routes from one wetland staging/feeding area to the next; they are unable to fuel a direct flight of 4000+ km. Perhaps the article should say this clearly! rather than quoting B.b.b as a good example of a migrationary detour. jw (talk) 22:33, 8 December 2021 (UTC)
thread_title:  Long-distance migration / detours  

message: Hi, I made a couple of illustrations demonstrating the difference between chaing migration and leapfrog. I don't want to "push" them here as I've made them so I'm just letting you know. Feel free to use them if you like. Cheers, --Podzemnik (talk) 03:27, 21 January 2022 (UTC)
thread_title:  A couple of illustrations 

message: What are migratory birds 2405:205:1101:B777:78A6:64C2:6E32:1CE5 (talk) 16:22, 21 October 2022 (UTC)
thread_title:  Science