Looduskalender

Anne7 wrote: April 21st, 2019, 11:35 am ...........

It is bizarre that Kati didn't cover one egg, several times.
Could it be a strategy to reduce the brood size?
.............

Anne Good Morning

thanks for the great pictures

That was my first thought too, because she has raised only 3 chicks the last 3 years.
That would be better than a chick...

Liz01 wrote: April 21st, 2019, 11:44 am Anne Good Morning

thanks for the great pictures

That was my first thought too, because she has raised only 3 chicks the last 3 years.
That would be better than a chick...

If it is the same egg each time.

asteria wrote: April 21st, 2019, 12:00 pm If it is the same egg each time.

I did not watch it yesterday ... just this morning. And I think we will not know.

The question is, since when are the eggs incubated. That would be the day they breed day and night
It was cold in the night- 1°But no frost. At least that's what Ventusky says .. how safe is it? I saw frost on Kati's wings.If there was frost, at least one egg is lost.
It may be that everything is good. But there will be a significant delay before the chicks hatch from these eggs.

5:00 Estonian Time Weather

Here is another card

https://www.meteoblue.com/de/wetter/vor ... iz_2661552

Looduskalender front page

https://www.looduskalender.ee/n/node/3381

I have now sent a mail to Maris S.. Maybe he knows an answer. Or he has a guess. At least he knows the behavior better than me and we all here. Except of course Urmas

17:15 Karl II is preening himself

17:17 Kati comes home






Karl II went on the curved branch and flew away (Karl mated with Kati during the breeding season )

17:45 Kati rolls the eggs

17:57 Kati is sleeping, hiding behind small twigs

18:02 Kati is poking in the nest bowl eggs are not visible



18:04 settles on the eggs and continues her incubation duty

18:36 Kati stands up and is preening herself

19:01 again a preening session by Kati
19:04 is aerating the nest bowl and settles on the eggs
19:33 she is doing a PS , is poking in the nest ground

2019-04-20 20:56
After watching the video, I think it was not intentional


viewtopic.php?p=646957#p646957

And I was wondering if it happens to others as well. We do not see everything. For example, we do not see is on the right side of Kati when she lies in the nest, with her face to the left.
What a sentence! I hope it is understandable what I mean. I am too tired to search for other words.

and the video from the early morning. After she got up and stretched, she also covered this egg.

Yes, hardly she did it deliberately, because it is impossible to differ one egg from others. If Kati decided to get rid of egg, she could simply peck on it.

19:58 Karl II comes home
He settles on the eggs. Kati is on her curved branch and preening herself.

Many thanks for all reports, comments and videos.

Liz01 wrote: April 21st, 2019, 6:38 pm ... After watching the video, I think it was not intentional
...

I don't know, Liz.
It would surprise me that an experienced female would handle her precious eggs so carelessly.

Coincidentally, this evening Karl II gave a "demonstration" of how he makes sure that he has all the eggs under his belly.

1. He neatly puts the eggs together. (19:59:43)


2. He positions himself above the clutch. (20:00:00)


3. He carefully ensures that he places a foot on each side of the clutch. (20:00:03)

4. He carefully lowers his body. (20:00:06)


5. He comes up a little to shuffle the eggs in a good position between his legs, under his belly. (20:00:07)


6. He has now neatly covered all 4 eggs. (20:00:10)


I'm quite sure Kati can do this the same way.
Then why didn't she do it?
I think it depends on how long the egg has remained uncovered. If it has been lying in the cold for hours, it may be lost.
Then perhaps the intention was to reduce the brood size.

If the egg has been "cooled" for shorter times, it may also have been the intention to delay its hatching/development.
That would only make sense if it concerns the first laid egg. (Or maybe the two first laid eggs.) Does Kati know which egg(s) she didn't cover?
A few years ago I might have laughed with this idea, but the knowledge of birds keeps surprising me ...

Liz01 wrote: April 21st, 2019, 5:33 pm Looduskalender front page
https://www.looduskalender.ee/n/node/3381
I have now sent a mail to Maris S. Maybe he knows an answer. Or he has a guess. ...

Thanks, Liz.
It will be interesting to read the opinion of this BS expert.

This is the (edited Google Translate) text of what is said on Looduskalender:

"Already in the evening was noticed that the female, Kati, left one egg uncovered, and in the morning the same happened again...
The question is: why?
This is certainly not negligence, but the reason is unclear. Does the stork feel that it will be difficult to raise four offspring?"

20:58:21
Karl II sleeps (with an open beak) in the nest. Kati is on the curved branch.


Good night, everyone.

April 22

Good Morning all

Anne, thank you for the evening pictures and your opinion about Kati. I'm curious what Maris M. means. Maybe he needs a video to see the behavior.

Early Morning- Kati is still on the curved branch. But it may be that they changed places a few times in the night.
5:33 Karl II is clacking with the beak, Kati turns on the branch. Karl II stands up and the greet each other.. only with white fanned tail.


5:34 Kati flew to the right. Karl II is poking in the nest and settles on eggs for continue incubating.

6:50 Karl II is poking in the nest bowl, rolls the eggs


6:51 settles on eggs

Good morning
From the early morning video about the uncovered egg it can be seen that the egg was so close to Kati's face and as she sees sideways - it is out of question that she did not see it.

8:44 Karl II is preening himself


8:44 another egg rolling by Karl II




Summi, I think so too. But I will wait and see, what Maris thinks about it.
It's Easter, he will not be on the PC ...

8:46 settles on his eggs

10:22 Karl II is still in the nest and is preening himself, while he is sitting on the eggs

10:23 he stands up and is preening his belly .. then his is rolling the eggs and aerating the nest bowl.

10:35 Karl II is sleeping

and I will be away for a few hours