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ссылка на сообщение  Отправлено: 18.05.22 16:06. Заголовок: Fauna of North America


I decided to open a topic for this continent, since it was the only one that remained without one in the foreign section.
I was thinking about the possibility of the snakehead fish and the peacock bass, both introduced species in the USA, surviving in the Neocene. Does it seems plausible? Another animal that could live here is a descendant of the house sparrow. It was also introduced here.

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ссылка на сообщение  Отправлено: 31.08.22 18:02. Заголовок: I was reading an art..


I was reading an article about how introduced pin-tailed whydah were thriving in California by parasiting nests of munias that were also introduced. It made me think if these two species could have descendants in the Neocene that also continued with this extraspecific relationship. Do you think that it could happen?

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Пост N: 9557
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ссылка на сообщение  Отправлено: 31.08.22 19:03. Заголовок: JOrnitho Yes, why n..


JOrnitho
Yes, why not.

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ссылка на сообщение  Отправлено: 14.09.22 17:39. Заголовок: I was reading how so..


I was reading how some species of Old World quails are migratory and it made me think if a new genus of migratory Galliformes could appear in North America. Perhaps the Ice Age could have influenced some of these birds to fly to the Mexican Plateau, with this becoming a seasonal practice of their descendants in the Neocene.

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Пост N: 9628
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ссылка на сообщение  Отправлено: 14.09.22 19:13. Заголовок: JOrnitho Good ideas..


JOrnitho
Good ideas! But what about a large flightless quail? Or poorly flying and migrating on foot, like rails.

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ссылка на сообщение  Отправлено: 14.09.22 23:13. Заголовок: Биолог пишет: But w..


Биолог пишет:

 цитата:
But what about a large flightless quail? Or poorly flying and migrating on foot, like rails.


These are really good idea. Maybe this quail could have a migration in the two ways, by flying and walking. A flightless quail would need to live in a place without terrestrial predators.

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Пост N: 9629
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ссылка на сообщение  Отправлено: 15.09.22 15:24. Заголовок: JOrnitho Maybe this..


JOrnitho

 цитата:
Maybe this quail could have a migration in the two ways, by flying and walking.


Quite so.

 цитата:
A flightless quail would need to live in a place without terrestrial predators.


Yes, but it can retain the flight ability, only using to escape a danger. It can hide and disguise itself in the grass or bushes to stay invisible to the enemies.

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ссылка на сообщение  Отправлено: 15.09.22 16:19. Заголовок: Биолог пишет: Yes, ..


Биолог пишет:

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Yes, but it can retain the flight ability, only using to escape a danger. It can hide and disguise itself in the grass or bushes to stay invisible to the enemies.


I think that in this case it could be like a tinamou, a bird with a poor ability to fly.
Regarding the migratorious galliforme, I was thinking that it could be close related to the grouses of the Holocene. It would spend the summer in subartic regions, migrating to Mexico in the winter. What do you think?

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Пост N: 9630
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ссылка на сообщение  Отправлено: 16.09.22 10:22. Заголовок: JOrnitho Yes, quite..


JOrnitho
Yes, quite a good idea. Only I thought it would be like a poorly flying rail. But a tinamou-like bird is also OK.

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ссылка на сообщение  Отправлено: 16.09.22 15:40. Заголовок: Биолог пишет: Only ..


Биолог пишет:

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Only I thought it would be like a poorly flying rail. But a tinamou-like bird is also OK.


I said a tinamou because they have a similar lifestyle to the Galliformes.

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Пост N: 9633
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ссылка на сообщение  Отправлено: 16.09.22 18:30. Заголовок: JOrnitho OK, I agre..


JOrnitho
OK, I agree. No problem.

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ссылка на сообщение  Отправлено: 24.09.22 15:54. Заголовок: I'm working in t..


I'm working in the migratory Galliforme, but I can’t think in a good name for it. Do you have any suggestions? It would be close related to the grouses.

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ссылка на сообщение  Отправлено: 25.09.22 14:18. Заголовок: JOrnitho But what i..


JOrnitho
But what is the ancestor exactly?

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ссылка на сообщение  Отправлено: 25.09.22 15:41. Заголовок: Биолог пишет: But w..


Биолог пишет:

 цитата:
But what is the ancestor exactly?


I thought that it could be the Ruffed grouse (Bonasa umbellus).

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ссылка на сообщение  Отправлено: 25.09.22 17:48. Заголовок: JOrnitho OK. So, ma..


JOrnitho
OK. So, maybe, Neobonasa migratoria?

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ссылка на сообщение  Отправлено: 26.09.22 00:38. Заголовок: Биолог пишет: OK. S..


Биолог пишет:

 цитата:
OK. So, maybe, Neobonasa migratoria?


I think that it's a good name. It could be the migratory grouse.

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Пост N: 9648
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ссылка на сообщение  Отправлено: 26.09.22 10:42. Заголовок: JOrnitho OK, I agre..


JOrnitho
OK, I agree.

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ссылка на сообщение  Отправлено: 01.10.22 16:05. Заголовок: I finished the descr..


I finished the description of the migratory grouse.

Migratory grouse (Neobonasa migratoria)
The Ice Age during the end of the Holocene led many species to adapt to survive. Some developed migratory habits, moving to the South so they could escape the cold weather. The ruffed grouse (Bonasa umbellus) was one of these species, with its descendant in the Neocene, the migratory grouse, becoming a fully migratory bird. During the summer, this bird forests from the Appalachian Mountains across Canada to Beringia. During the winter, these birds migrate to the Mexican Plateau.

The migratory grouse are relatively slender, medium-sized birds that measure from 40 to 50 cm in length and span 80–100 cm across their strong wings. The head, neck, and back are grey-brown; the breast is light with barring. There is much white on the underside and flanks. Overall, the birds have a variegated appearance; the throat is often distinctly lighter. The tail is essentially the same brownish grey, with regular barring and a broad black band near the end. The ruffs are on the sides of the neck in both sexes. They also have a crest on top of their head, which sometimes lies flat. Both sexes are similarly marked and sized, making them difficult to tell apart, even in hand. The female often has a broken subterminal tail band. At the same time, males tend to have unbroken tail bands, though the opposite of either can occur. Females may also do a display similar to the male. Another fairly accurate sign is that during the displays, the males will inflate their throat, revealing a bright red patch of skin.

Like most grouse, they spend most of their time on the ground; mixed woodland rich in aspen seems to be particularly well-liked. These birds forage on the ground or in trees. They are omnivores, eating buds, leaves, berries, seeds, and insects.

These birds are polygynous, and males may mate with several females during the breeding season. The migratory grouse relies mostly entirely on a non-vocal acoustic display, known as drumming, unlike other grouse species. The drumming itself is a rapid, wing-beating display that creates a low-frequency sound, starting slow and speeding up. The male will also inflate their throats during the ritual. Hens build nests and lay and incubate their eggs under the cover of brushes. The hen uses grass and forbs between patches of brushes for additional cover. During incubation, female migratory grouse undertake recesses, where they leave the nest to undertake self-maintenance activities, thought these recess activities are typically within 250 m of the nest. They lay four to six eggs that are incubated for 21 days. Chicks can walk as soon as they are hatched and are able to fly short distances within two weeks. Within five weeks they are able to fly longer distances.
They spend most of their time quietly on the ground, and when surprised, may explode into flight, beating its wings very loudly. During the autumn, the migratory grouse will fly to the South. Their migration will happen both by flight and walking. These birds use long patches of grass in the prairies regions that they cross to hide their terrestrial movements from predators. The average lifespan of a migratory grouse is one year, although some birds can live for eleven years.

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ссылка на сообщение  Отправлено: 01.10.22 19:14. Заголовок: JOrnitho Very good ..


JOrnitho
Very good one! Thanks!

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