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Bird Quizz (RV) - IPY

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Imberbe
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Re: Bird Quizz (RV)

Unread post by Imberbe » Thu Jul 19, 2012 7:10 pm

:hmz:
Imberbe = Combretum imberbe = Leadwood = Hardekool = The spirit of the Wildernis!

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ndloti
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Re: Bird Quizz (RV)

Unread post by ndloti » Fri Jul 20, 2012 8:44 am

Pied babbler ?
KNP is sacred. I am opposed to the modernisation of Kruger and from the depths of my soul long for the Kruger of yesteryear! 1000+km on foot in KNP incl 56 wild trails.200+ nights in the wildernessndloti-indigenous name for serval.

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onewithnature
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Re: Bird Quizz (RV)

Unread post by onewithnature » Sat Jul 21, 2012 12:59 am

Penguins?
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Rooies
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Re: Bird Quizz (RV)

Unread post by Rooies » Sat Jul 21, 2012 6:31 am

I think it is some or other water bird like a coot or something.
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Roan
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Re: Bird Quizz (RV)

Unread post by Roan » Sun Aug 05, 2012 8:57 pm

Hi all :yaya:
Been a while. Got tangled up in the rat race.
Think big on the birds :wink:
2013. . . . . Okavango?

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Imberbe
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Re: Bird Quizz (RV)

Unread post by Imberbe » Sun Aug 05, 2012 11:37 pm

Ostrich
Imberbe = Combretum imberbe = Leadwood = Hardekool = The spirit of the Wildernis!

Want to know more about the SANParks Honorary Rangers? Visit www.sanparksvolunteers.org


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Roan
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Re: Bird Quizz (RV)

Unread post by Roan » Tue Aug 07, 2012 8:29 pm

Well done Imberbe! You are it. . .
2013. . . . . Okavango?

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Imberbe
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Re: Bird Quizz (RV)

Unread post by Imberbe » Tue Aug 07, 2012 9:12 pm

:dance:

I will not be able to post for a few days ...

First to post is IT!
Imberbe = Combretum imberbe = Leadwood = Hardekool = The spirit of the Wildernis!

Want to know more about the SANParks Honorary Rangers? Visit www.sanparksvolunteers.org


One positive deed is worth more than a thousand critical words.

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onewithnature
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Re: Bird Quizz (RV)

Unread post by onewithnature » Wed Aug 08, 2012 9:06 am

Why do birds of prey spiral when moving in an upward direction in the sky?
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Rooies
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Re: Bird Quizz (RV)

Unread post by Rooies » Wed Aug 08, 2012 9:58 am

onewithnature wrote:Why do birds of prey spiral when moving in an upward direction in the sky?


To stay in the hot wind currents that goes upwards.
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onewithnature
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Re: Bird Quizz (RV)

Unread post by onewithnature » Fri Aug 10, 2012 12:48 am

Yes, Rooies, but then why spiral - why not just float upwards on extended wings?
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Rooies
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Re: Bird Quizz (RV)

Unread post by Rooies » Fri Aug 10, 2012 8:18 am

I will take a wild guess here. The updrafts doesn't stay in the same place and moves constantly. The birds must go in circles to test and exploit the best currents.
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onewithnature
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Re: Bird Quizz (RV)

Unread post by onewithnature » Sat Aug 11, 2012 6:36 am

Intelligent guess, Rooies, but not exactly correct.
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TR: NECTAREAN NICETIES OF THE NORTH
TR: PRIMEVAL PLEASURE

"Outside of a dog, a book is a man's best friend. Inside of a dog, it's too dark to read." (Groucho Marx)

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Imberbe
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Re: Bird Quizz (RV)

Unread post by Imberbe » Tue Aug 21, 2012 11:18 pm

The updraft can be likened to a bubble of air which is created when you boil water. The bubble starts at the bottom and then moves upward, eventually detaching itself from the area where it started. It can also move horisontally across the landscape at the same time.

Though it is much bigger than the boiling water bubble, it remains rather confined and the birds needs to keep within this updraft to get the lift. To achieve this, it needs to spiral within the bubble. Some birds are not able to spiral in such a confined space and can therefore not use the updrafts effectively.
Imberbe = Combretum imberbe = Leadwood = Hardekool = The spirit of the Wildernis!

Want to know more about the SANParks Honorary Rangers? Visit www.sanparksvolunteers.org


One positive deed is worth more than a thousand critical words.

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onewithnature
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Re: Bird Quizz (RV)

Unread post by onewithnature » Wed Aug 22, 2012 1:18 am

IB :clap: :clap: :thumbs_up:
EVERYBODY'S TR!
TR: A NEW DAY IS S-OWN
TR: NECTAREAN NICETIES OF THE NORTH
TR: PRIMEVAL PLEASURE

"Outside of a dog, a book is a man's best friend. Inside of a dog, it's too dark to read." (Groucho Marx)


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