Black Stork Nest in Karula - 2017

[Liz01]

8:15 Tali flies off
8:18 Uno jumps in the nest
8:18 Tali returned

[Liz01]

10:46 Uno flew away

[Liz01]

11:37 Karl brought a lot of frogs




Uno was not here

[Liz01]

13:03 Uno returns

begging




greetings

[Summi]

Anne, thank you for sharing the info on migration with us. The more I read about it, the more awsome the animal world looks.

[Liz01]

14:47 Feeding by Kati

[Liz01]

Karl's feeding was funny.. this frog was nmot eaten
Usin can not swallow a frog. The frog saves himself on Usin's beak. Tali tries to get him .. doesn't make it. So the frogs goes over bord!

[Anne7]

Anne, thank you for sharing the info on migration with us. The more I read about it, the more awsome the animal world looks.

I totally agree, Summi. It's very fascinating... Animals are amazing!
A lot of the migration 'mechanism' is in fact still a 'mystery', even for scientists.
The 'tools' birds use to find their way are apparently still not (completely) understood. (So nobody knows something for sure yet.)
Saying that birds follow their instinct, that they have several internal clocks, that their compass is inborn, that they are born with an innate map isn't a real scientific explanation in my opinion.

This little article is confirming it:
http://www.smithsonianmag.com/science-n ... -61927645/

How do birds find their way home?
Decades of studies with frosted lenses, magnetic coils or scent deprivation show they use pretty much every clue available. The most difficult one for us to comprehend may be the earth’s magnetic field. Birds see it, but what it looks like to them, nobody knows. Work by Roswitha and Wolfgang Wiltschko in Germany, among others, suggests that this sense relies on quantum mechanics—that is, birds detect something happening in the eye at a subatomic level. Light striking the retina seems to stimulate chemical reactions that produce pairs of molecules with electrons that are "entangled," meaning they share certain quantum properties. One of those properties, called "spin", is affected by a magnetic field. That effect could tell the bird which way is north.

Charles Walcott of Cornell, who began studying pigeons in the 1960s, says homing is "still a mystery"
A reminder that "it’s a mistake to think that we live in the same sensory world as other animals."

And also this article:
http://www.educapoles.org/news/news_det ... _their_way
The question still interests many scientists.

Birds can use the sun, for example, which means that they permanently "know" what time it is, in order to know the right direction on the basis of the sun's position. They are also sensible to the ultraviolet rays which penetrate the clouds but are invisible for human beings. Even the nocturnal birds use the position of the sun at sunset to know their position.

Nocturnal birds also use the stars. This has been proved by letting birds fly in a planetarium and changing the (artificial) stars' position.

Another tool is the earth's magnetic field (earth's north and south magnetic poles). Some birds, like pigeons, have a small zone in their brain made of magnetite (magnetic mineral), just like a small compass. But other scientists think it's rather in their eyes that some birds have a system which indicates them where the magnetic north is...

Of course, birds also use their knowledge of the landscape: they follow rivers, valleys or roads, or locate themselves with particular mountain peaks.

Other tracks are also to be explored. For example it seems that some birds could find their way by following their sense of smell...

[UteL.]

This was a very good contribution, thank you Anne7

[Anne7]

UteL and aquiline
You're welcome!

Liz thanks for all pics and videos.

Kati is still here!
This year everything seems different.
The day after tomorrow Uno will be 12 weeks old! 84 days.
They all act as if they have plenty of time, this year.

[Liz01]

18:26 Feeding by Karl

[juta]

18.26

Ready!



Karl

[juta]

Anne7, thank you for finding and posting interesting info. I think, we will copy that on first page of this topic.

[Anne7]

You're welcome, Juta.
I was happy to do it.

[juta]

19.39
Feeding, Kati

[Liz01]

August 10

Good morning

6:26 Uno alone at home




Anne Thanks a lot for your really interesting posts. It is a good contrast to all the pictures and videos.

[Liz01]

6:35 all together in the nest

[Liz01]

8:10 Uno alone at home
8:25 Tali returns
8:28 Uno jumps on the left branch
8:28 Tali flies off
8:30 Uno flies off

empty nest

[Liz01]

8:34 all together in the nest

[Liz01]

10:55 They do not make much at the moment. They fly away and come back. In the main thing they wait for a nice breakfast