24.februāris
Pirms pusotra mēneša tika nolemts no ligzdas izņemt ērgļu olas un pārvietot tās mākslīgā vidē.
Un kāpēc to darīja? Jo Bo nelli ērgļi ir kritiski apdraudēti Izraēlā.
Ērgļu pāris
pirmo olu izdēja 1.1.22, otro 4.1.22 un trešo 7.1.22. Taču pirmajās deviņās dienās viņi gandrīz nesildīja olas un katru nakti atstāja tās pakļautas aukstumam. Nav skaidrs, kāpēc viņi šādi rīkojās, taču bija skaidrs, ka tik ilgs laiks bez inkubācijas var kaitēt reto ērgļu dārgajām olām. Tika nolemts, ka ir jāiejaucas šādu iemeslu dēļ:
1. šī suga ir nopietni apdraudēta un ja netiek izvesta aktīva dabas aizsardzības saskarne, suga var izmirt kā ligzda Izraēlā.
2. 2021. gadā šis ērgļu pāris uz olām pavadīja 50–60 dienas, līdz mēs tās pametām. Pēc tam viņi izdēja 2.dējumu un atkal perēja 50–60 dienas bez olu izšķilšanās. Tas ir, šķiet, ka pastāv vides/hormonāla/veselības problēma, par kuru mēs nezinām, un mums ir nepieciešama iejaukšanās/palīdzība.
3. Kopš dēšanas ērgļi gandrīz nav sildījuši olas. Problēmas ir skaidras un norādītas iepriekš.
4. Ir kamera, kas raida 24 stundas diennaktī un pētnieki zinātu par problēmu, ja tāda būtu.
5. Ja ērgļi neizšķiļas pienācīgi, tad olas var izņemt no ligzdas, mākslīgi inkubēt un pēc izšķilšanās atgriezties ar veseliem cāļiem. Līdzīgas iejaukšanās ir veiktas arī agrāk.
10.01.2022. olas tika izņemtas, un aizvietotas ar mākslīgām. Interesanti, ka ērgļi turpmāk mākslīgās olas perēja akurāti.
16.01.22. tika saņemti analīžu rezultāti, ka visas trīs olas ir normālas un ka visām trim ir sākusies normāla augļa attīstība.
"Labi uzelpojām un sākām skaitīt dienas līdz viņu iecerētajai izšķilšanai un cāļu atgriešanai pie vecākiem."
10.02.22. tika saņemta ziņa, ka visu 3 olu attīstība pēkšņi apstājās, un pēc laboratoriskas pārbaudes izrādījās, ka visas trīs bija inficētas ar Mycoplasma baktērijām, kas pārnēsājamas no mātes uz olu. Tomēr nav skaidrs, vai tas ir vienīgais to mirstības cēlonis. Olas tika zaudētas.
24.02.2022. tika saņemta ziņa, ka vaislas sēklā sākuši izšķilties divi cāļi un pēc dažām dienām tos varēs ielikt ligzdā.
https://www.facebook.com/15188718084190 ... 997630662/
Israel Raptor Nest Cam - עופות דורסים בשידור חי
We got the eagles eggs out of the nest and hope to give them adopted chicks in the next few days
A month and a half ago, it was decided to surf to the eagles' nest in order to "extract" the eggs of the eagles from the nest and move them to artificial setting.
And why did we do that?
First we will remind you that the Nazi eagle is defined as a critically endangered species (CR) in Israel. The nesting population in Israel has shrunk significantly since the establishment of the state of Israel. israel With the establishment of the state we still nested in Israel more than 60 couples in all the distressed spaces, from the Hermon and to the mountains of Eilat. However, it is now estimated that in Israel only between 12 and 20 pairs nest. Therefore, many efforts are invested (led by the Nature and Gardens Authority and other framework) in order to preserve this population (breeding seeds, returns to nature, active interface and nest protection etc etc).
Secondly, we remind you that the pair of eagles laid their first egg on 1.1.22, the second on 4.1.22 and the third on 7.1.22. But, during the first nine days they hardly set foot on the eggs and every night left them exposed to the cold.
It was not clear to us why they acted this way but it was clear that such a long period of time without incubation could harm the precious eggs of the rare eagles. A population in which every egg is necessary and important for the future of this population.
So in the first days after the impositions we followed with concern this problematic behavior and after a discussion between the partners, led by RTG personnel Ohad Hatzofe and Ygal Miller, Guy Cohen, Matan Morad and Amos Sabah, it was decided that we must intervene, and this is for a few reasons:
1. As stated, this species is seriously endangered and according to a scientific demographic model made in the last year (by Assaf Miroz and Ofer Steinitz) it arises that if an active nature conservation interface is not implemented (returning to nature, nest conservation etc.) the species may become extinct as a nest in Israel.
2. In 2021 this pair of eagles spent 50-60 days on the eggs until we abandoned them. They then threw a reserve laying in a nearby nest and again completed 50-60 days without the eggs hatching. That is, it seems there is an environmental/hormonal/health problem that we are unaware of and requires intervention/help from us.
3. The eagles have hardly laid a foot on the eggs since they were laid. The problems are clear and stated above.
4. There is a camera broadcasting 24/7 and warning about a problem we wouldn't have known existed.
5. If the eagles do not hatch properly, then the eggs can be extracted from the nest, transfer them to artificial setting in the Carmel Valley and return to healthy chicks, when they hatch. Similar interventions have been made in the past.
So that's exactly what we did.
After a deep discussion and weighing all the possibilities, it was decided to surf to the nest on 10.1.22 and move the eggs to artificial setting at the Bar Carmel Animal Reserve - the Nature and Gardens Authority by a professional team that will look after the eggs until they hatch.
But, how do you prevent abandoning the nest after the eggs are taken?
They put plaster dummy eggs. Yes. Plaster eggs are laid in exactly the same size/weight/shape.
Walter Neser was entrusted with this delicate work who professionally surfed into the nest, carefully put the eggs into a protected box and in their place placed blood eggs in the eagles' nest.
And then, as soon as the process was over, everyone hurried up and left the territory hoping that the eagles will return to stab as soon as possible. And much to our joy, they returned to stab. The truth is that since then they have also returned to stabbing "as needed". Almost without leaving the cast eggs.
On 16.1.22 we received an update from Ygal Miller that all three eggs are normal and that all three of them began to develop normal fetal. We breathed well and started to count the days until their intended hatching and the return of the chicks to their parents. Except on 10.2.22 we received another update but this time it was a sad update. It turned out that the development of the three eggs stopped suddenly, while they were framed in artificial frames. The eggs were sent for laboratory testing and it turned out that all three of them were infected with the Mycoplasma bacteria that also causes transmitted and transmitted injury from the mother to the egg.
However, not at all certain that this is the exclusive cause of their mortality. The assumption is that the problematic incitement in the first week also contributed to their mortality. Apparently.
But, since we realized that the original eggs were lost. It was also decided to wait and see if chicks of eagles will hatch in the breeding seed in the Bar Carmel Chai Nature Reserve - the Nature and Gardens Authority in order to immerse them in the nest and hope that they will be adopted by the pair of eagles. This, from the understanding that the survival chances of a chick that has bloomed in the wild are greater than the survival chances for a chick that has grown in the seed of reproduction and released into the wild as a young.
So now, just today (24.2.22), we received an apricot update that two chicks have begun to hatch in the breeding seed and that they can be embedded in the nest in a few days.
Except here the challenge and the tension never ends...
First, the eagles hatch for 54 days (on dummy eggs) although the incubation range is 42~ days for each egg. So we hope they continue to breed until we arrive with the chicks.
Secondly, we hope that they will return to the nest after the chicks are implanting and that they will adopt the young chicks and take care of them until their successful hatching.
So in short, cross your fingers/pray that the whole process will go smoothly and that the active interface shared above will prove itself and help preserve and dry the population of this rare and wonderful species.
In conclusion, we sit back and note that all conservation efforts are being done with the support of "Wing Out" and the Open Lands Foundation and is carried out by a broad team of precious and determined people who are working very hard to preserve endangered rare populations. All this, also so that our grandchildren will be able to see run-ins in general and sparrowing eagles in particular multiply and live throughout the world.. israel
Informācija angļu valodā no FB Israel Raptor Nest Cam lapas var būt kļūdaina GT tulkojumā no ebreju valodas.
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