Lesser Spotted Eagle (Clanga pomarina) nest in Zemgalē, Latvia 2023

[ame]

Lesser Spotted Eagle (Clanga pomarina) nest with Anna and Andris in Zemgalē, Latvia

new topic for the new season. Liz will make introduction here soon.

please wait till then... then i'll close the topic of last season.

[Liz01]

Lesser Spotted Eagle Nest Anna & Andris

The nest place is located in the region of Zemgalē (English: Semigallia) in southern Latvia, the green part of the map

https://lv.wikipedia.org/wiki/Zemgale

Camera Live stream:
https://www.youtube.com/watch?v=r_Pb5LHc9Zo

Latvijas Dabas fonds on YouTube:
https://www.youtube.com/@LatvijasDabasfondsOnline

Live broadcasts through Dabasdati.lv in one window:
https://dabasdati.lv/lv/cameras/all

Link to Dabasdati forum for further information (in Latvian language):
https://forums.dabasdati.lv/viewtopic.php?f=34&t=4320

More about Lesser Spotted Eagles:
viewforum.php?f=53

Colour ringing of the Spotted Eagles (Aquila pomarina, Aquila clanga and their hybrids) in Europe – a review:
https://www.academia.edu/14957314/Colou ... e_a_review


This nest is located on the western edge of Zemgale. It was found in 2018 when eagles nested successfully and one young bird left the nest. However, as the researchers discovered, it did not experience its first flight to the wintering sites - early 2019, the remains of an adult young bird were found on the ground about 100 meters from the nest. The nest is built in a spruce at a height of 17 meters, in a stable fork of three branches. It is a typical small Lesser Spotted Eagle nest - about half of all LSE nests in Latvia are built in the spruce trees, and a large part of them are built in such places where branches have formed a fork. Judging by the size of the nest and the condition of the material, the nest is at least five years old.

Jānis Ķuze and Jānis Rudzītis placed the camera system at this nest. Thanks for the support of Janis Kažotnieks and Renate Kviese!

The live camera operation at the LSE nest is provided by the Latvian Fund for Nature within the framework of the project "Providing Lesser Spotted Eagle Protection in Latvia" (LIFE AQPOM), which is financially supported by the European Commission LIFE + program and co-financed by the Latvian Environmental Protection Fund Administration.
(translated with the help of Google Translator from Lativian language)

The live stream shows nature to viewers as it is. With beautiful moments and with the harshness of nature.
The organizers of the live broadcast do not interfere with natural processes, except when birds are harmed as a result of human activity.

Cainism in lesser spotted eagles:

Author: Bernd-Ulrich Meyburg
The following factors are responsible for Cainism (fatal Cain-and-Abel struggle) in the Lesser Spotted Eagle: 1. The time lapse of several days between the hatching of the two chicks, giving the first-born (Cain or C1) a more or less considerable developmental advantage. 2. Cain's greater weight at the time of hatching. It usually also hatches from the larger egg. 3. The aggressiveness of the chicks towards each other. 4. The acceptance of intimidation by the inferior chick, even when there is virtually no difference in weight (e. g. in translocation experiments), to the extent that this chick hardly ventures to take part in feedings. 5. The scant attention paid by the female to the second chick. given its smaller size and, above all, its greater clumsiness in taking food due to its retarded development, shows that it holds a waning power of attraction. The food supply plays no part in this. At this time lhe nest contains an ample supply of prey. Up to now there has been much disagreement over the meaning of second-egg laying, leading as a rule to the fledging of only one young, and over the significance of Cainism within the framework of evolution in this and other eagle species. None of the attempts to explain it so far published is really convincing. One possible explanation for the phenomenon of Cainism may well be that the species is at an evolutionarily intermediate stage of transition from two-egg to one-egg clutches. For unknown reasons, and in contrast to earlier times, the raising of one young per breeding season is today sufficient to maintain the species. At a later stage in the course of its evolution this species, which at present lays a second egg clearly smaller than the first – one could regard this as vestigial – may well confine itself to laying no more than one egg per clutch.
https://www.researchgate.net/publicatio ... a_pomarina

[Liz01]

Nest information from previous years

In 2019, a pair of lesser spotted eagles raised one chick, which was given the name Grinch
viewtopic.php?t=972

In 2020, a pair of Lesser spotted eagles raised one chick, which was given the name Namejs The second chick died.
viewtopic.php?t=1005

In 2021, a pair of lesser spotted eagles raised one chick, which was given the name Perle
viewtopic.php?p=789459#p789459

In 2022, a pair of lesser spotted eagles raised one chick, which was given the name Rota
viewtopic.php?p=835307#p835307

[Liz01]

Important events 2023

12.04.2023 at 6:41 AM -arrival female
12:04.2023 at 1:24 PM - arrival male

18.04.2023 Male brings the first gift for female
viewtopic.php?p=895652#p895652

27.04.2023 Anna laid her first Egg at 18:37:31
viewtopic.php?p=897355#p897355

Video by BDrieliņi



01.05.2023 Anna laid her second egg
viewtopic.php?p=898258#p898258

[Liz01]

Inhabitants


©Vērotāja 2019

Visitors


Time of incubation
After 38-41 days' incubation the chicks hatch in the first half of June .The hatching process takes 24-28 hours (Hoffmann 1938, Meyburg 1970).

Oology

The egg and everything
How chicks learn for life before they hatch and some birds don't color their eggs until after Easter.
by Thomas Krumenacker:
viewtopic.php?p=900480#p900480

[asteria]

So many cones this year.

[Liz01]

they are still far away


https://birdmap.5dvision.ee/EN/

[Liz01]

March 26

good Morning Zemgale

we can expect our eagles between April 7th and 12th (2019 arrival 12.4./ 2020 arrival 7.04. / 2021 arrival 12.04 /2022 arrival 11.04 )

8:56 A Goshawk visit the nest. Thank you Trīne
the first visitor as every year...

[Liz01]

still a Juvenile


Northern Goshawk flight identification and ageing in the UK
http://andybutlerdiaries.blogspot.com/2 ... ation.html

He was sitting on Anna's branch for a few minutes


the video

[Liz01]

March 30

Good Morning all

winter wonderland Please stay away, eagles

[Liz01]

March 31

Good Morning Zemgale

Nest is "snow free"

[Liz01]

April 3


good Morning everyone

A ringed goshawk visit the nest. Metal ring on the left. not adult yest. A juvenile, it looks like first plumage
http://andybutlerdiaries.blogspot.com/2 ... ation.html




ring is not readable

[Liz01]

Video of this visit. He/she was a bit more playful as the other visitor a few days ago

[Liz01]

April 5th



I hope the winter will be over soon

[Liz01]

April 7

A adult goshawk visit the nest - thank you Lenka Horska




one of Polly's friends

[Liz01]

and off he goes

[Polly]

Liz!
Yes, well, if the H's are no longer to be seen, then others at least.

Beautiful animal ...

[Liz01]

April 12

Good Morning
Polly

6:41 first LSE has arrived It is Anna
Welcome back home




she is calling

[Liz01]

preening, calling and waiting.. her crop is full.


Video of her arrival


7:10 she is preening herself

[Liz01]

7:31 Anna brings twigs and starts nestauration. she is calling every now and then