Estonian Osprey Nest (Ivo & Iiris) 2019

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Estonian Osprey Nest (Ivo & Iiris) 2019

Post by Bea » March 24th, 2019, 1:43 pm

°°°°°°°°°°°
Welcome everybody to the seventh season on this nest!

- - - -

Introduction on LK main page in English: still to come

- - - -

We all hope to see our resident couple Irma (U5) and Ivo (ED) back on this nest, for another successful breeding season.

Nearly every season here had a "drama", also last year, 2018, had its surprise for cam observers.

Irma and Ivo returned home safe and sound, three eggs were laid, no egg was lost by accident, three osprets hatched, no ospret was blown from the nest during a storm, all grew up well and got their ID-rings when they were big enough and then all three osprets fledged.

Unfortunately one of the osprets, Jaak (XJ), somehow managed to get his ring slipped over his left ankle, two of his toes were "trapped" in the ring, see picture below.

Jaak´s slipped ring
Image

Nobody knows how this happened, it happened somewhere outside the nest, out of cam view. For parts of the audience it was not easy to hear and accept that there would be no intervention, as there was no chance to trap this fledgling and release him from the ring. A very unhappy situation on the one hand, not pleasant to watch, but on the other hand it was an unique possibility for ornithologists to observe how things would go on and to draw conclusions, e.g. about ring material and -size, and maybe take changes into consideration.

All came to a happy end, when Jaak could get rid of the ring all by himself, after 8 days living with this mislocated ring.

- - - -

Forum member mogga made a wonderful video, a summary of season 2018


- - - -

Ivo hatched and was ringed in 2013 by Joosep Tuvi, in a nest 50 km NNE in Jõgeva county

Irma was ringed as an adult bird, we don´t know anything about her hatching date

Nest is located in South Estonia, Tartumaa, not far from a fish farm. Natural river and ponds are in vicinity, too.

Ospreys (Pandion haliaetus) reach body heights of 50-66 cm, and wingspans of 1,27 - 1,74 m. Females are bigger than males.

- Winglength ♂ 448 bis 495 mm ♀ 470 bis 518 mm
- Weight ♂ 1,12 bis 1,74 kg ♀ 1,21 bis 2,05 kg

Usually two or three eggs are laid and incubated 36-41 days.
Young Ospreys fledge after 50-54 days.

- - - -

How to catch an adult osprey to ring it or equip it with a transmitter - documentation from Jürgen about an attempt in 2013:
viewtopic.php?p=260799#p260799

- - - -

Link to forum topic 2018: viewtopic.php?f=56&t=919
Post with seasonal summary 2018:viewtopic.php?p=570548#p570548

Link to forum topic 2017: http://www.looduskalender.ee/forum/view ... f=56&t=877
Post with seasonal summary 2017: http://www.looduskalender.ee/forum/view ... 23#p516223

Link to forum topic 2016: http://www.looduskalender.ee/forum/view ... 24#p452224
Post with seasonal summary 2016: http://www.looduskalender.ee/forum/view ... 25#p452225

Link to forum topic 2015: http://www.looduskalender.ee/forum/view ... f=56&t=764
Post with seasonal summary 2015: http://www.looduskalender.ee/forum/view ... 52#p365852

Link to forum topic 2014: http://www.looduskalender.ee/forum/view ... f=56&t=661
Post with seasonal summary 2014: http://www.looduskalender.ee/forum/view ... p=302925#p

Link to forum topic 2013: http://www.looduskalender.ee/forum/view ... f=56&t=550
Post with seasonal summary 2013: http://www.looduskalender.ee/forum/view ... 99#p217199

- - - - -

Link to pontu video archives http://193.40.124.24/2019-kalakotkas2/

- - - - -

Camera links

JW Player, Browsers: http://tv.eenet.ee/kalakotkas2.html and/or older link http://pontu.eenet.ee/player/kalakotkas2.html

Android, VLC (older links): rtmp://193.40.133.138/live/kalakotkas2 or rtsp://193.40.133.138/live/kalakotkas2

iPhone and iPad, Android, VLC and other players: http://tv.eenet.ee/hls/kalakotkas2.m3u8

Youtube: https://www.youtube.com/watch?v=V4-hy6s5oNs

In case the current youtube link is not working, please visit youtube channel of Urmas Lett (our "Techno-Urmas"), one can find the actual link to the live stream there
https://www.youtube.com/user/urmaslett

- - - - -

We ask members to post no more than three pictures plus one video per posting,
and pictures should not be larger than 800 x 600 pixels.


Too many or too big pictures/videos will be edited by admins/mods.

Please add camera time to your posts/pictures/observations! Thank you!
Nature does nothing in vain (Aristoteles)

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Post by Bea » March 24th, 2019, 1:44 pm

°°°°°°°°°

Main Events 2019

2. April ---> Camera goes online

3. April ---> Osprey in the dead tree viewtopic.php?p=641009#p641009

5. April ---> Estonian White-tailed Eagle on the nest (Ring E3O1) viewtopic.php?p=641558#p641558
Details about E301 viewtopic.php?p=642020#p642020

7. April --- Our resident male osprey Ivo (ED) is back on the nest viewtopic.php?p=642301#p642301

13. April --- Unringed female (?) Osprey on the nest viewtopic.php?p=644066#p644066

17. April --- Osprey with ring EA re-visited the nest viewtopic.php?p=645889#p645889
What we already know about it, see summary 2018 viewtopic.php?p=570548#p570548

19. April --- Ivo and two unringed female ospreys together on the nest viewtopic.php?p=646392#p646392

23. April --- An unknown osprey (female?) with metal ring right ankle on the nest viewtopic.php?p=647960#p647960

26. April --- Egg #1 is laid viewtopic.php?p=649118#p649118

27. April --- New female osprey gets the name Iiris / Iris viewtopic.php?p=649684#p649684

29. April --- Egg #2 is laid viewtopic.php?p=650267#p650267

2. May --- Egg #3 is laid viewtopic.php?p=651269#p651269

16. May --- Unringed osprey lands on the nest viewtopic.php?p=656505#p656505

4. June --- Ospret #1 hatches viewtopic.php?p=662393#p662393

5. June --- Ospret #2 hatches viewtopic.php?p=662789#p662789

7. June --- Ospret #3 hatches viewtopic.php?p=663538#p663538

15. July --- Osprets get rings UM (supp. male, 1575 gr), UN (supp. female, 1695 gr) and UP (supp. female, 1605 gr) viewtopic.php?p=676580#p676580
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Post by Bea » March 24th, 2019, 1:44 pm

°°°°°°°°

History of inhabitants

2013
Adults
Irma (U5) and Ilmar (AF) (former U6)
Osprets
Kaido (DJ), Kenno (DH) and Kaari (DK) died in August

2014
Adults
Irma (U5) and Ilmar (AF)
Osprets
Aino (AR) and Elar (DI)

2015
Adults
Irma (U5) and Joosep (J3)
Osprets
Niina (NN), Thor (NT) and Yolanda (NY)

2016
Adults
Irma (U5) and Ivo (ED)
Osprets
Ivar (RR) a second smaller ospret was blown off from the nest in storm

2017
Adults
Irma (U5) and Ivo (ED)
Osprets
Daisi (DX) and Daimar (DZ)

2018
Adults
Irma (U5) and Ivo (ED)
Osprets
Jaak (XJ), Heli (XH) and Kaja (XK)
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Post by Bea » March 24th, 2019, 1:44 pm

°°°°°°

Forum members mail and Owlie made some statistics about the dates when Irma was first time seen back on the nest after her migration --- thank you!
mail wrote:....
In previous seasons Irma has first seen on the nest: 29.04.2013, 24.04.2014, 24.04.2015, 18.04.2016
....
http://www.looduskalender.ee/forum/view ... 23#p520623

Owlie wrote:IRMA's migration return dates:

2013: 29th April to Ilmar
2014: 24th April to Ilmar
2015: 24th April to meet with Joosep
2016: 18th April to meet with Ivo
2017: ... to Ivo?
....
http://www.looduskalender.ee/forum/view ... 90#p521290


- - - -

In 2017 Irma was seen back on the nest for the first time on 22. April
In 2018 Irma was seen back on the nest for the first time on 19. April
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Post by Bea » March 24th, 2019, 1:44 pm

°°°°°°°°

Forum member Sappheira made another interesting statistic --- thank you!
Sappheira wrote:Period between arrival after migration and the first egg

2013
Irma and Ulmar; 10 days
April 29 - Irma (U5) arrived home in the afternoon. Ilmar delivered fish and they mated.
May 09 Egg #1 - (DJ, Kaido)

Oxana and Madis; 9 days
April 23 Piret left the nest. Madis mated several times a day with Oxana.
May 1 Oxana laid an egg.

2014
Irma and Ilmar; 9 days
April 17 - Ilmar arrives at the nest (first arrival 15:31)
April 24 - Irma arrives at the nest and starts attacking the "Dark Beauty" (18:44)
May 3 - Irma laid an egg.

2015
Irma and Joosep; 10 days
14. April - Osprey with ring J3 appears on the nest
24. April - Irma (U5) returns!
3. May - J3 is named Joosep
3. May Egg #1 is laid

Mai and Mikk; 9 days
23. April - Ringed Female Osprey on the nest, white numbers on black ring 29 left ankle.
1. May - Ospreys were named Mai (female) and Mikk (male)
1. May Egg #1 is laid

2016
Irma and Ivo, 13 days
18. April - Irma (U5) is back
19. April - Male Osprey with Estonian ring ED left – Ivo, probably first couple experience
1. May - Egg #1 is laid

Mai and Mati; 8 or 9 days?
16. April - Mai is back on the nest (ring 29)
20. April --- Unringed Osprey at (over the nest)
21. April - Unknown Osprey over the nest
28. April - new resident male Osprey is named Mati
28. April - Egg #1 is laid

2017
Ivo and 718
11. April - Ivo (ED) is back at the nest
12. April - Female Latvian Osprey (red ring with white numbers 718) arrives
Today is 9th day
Egg #1 is soon?
http://www.looduskalender.ee/forum/view ... 99#p522099


2017
There was no egg laid from Latvian female osprey 718
Irma arrived at 22. April and first egg was laid 2. May --- 10 days

2018
Irma arrived at 19. April and first egg was laid 29. April --- 10 days
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Post by Bea » March 24th, 2019, 1:44 pm

°°°°°°

Statistic from our forum member mogga --- thank you!
mogga wrote: Bea, this are the dates when Irma was last seen before migration to Africa:

2013:
23. August

2014:
21. August
http://www.looduskalender.ee/forum/view ... 39#p341439 (Kisara)

2015:
19. August
http://www.looduskalender.ee/forum/view ... 64#p416864 (seira)

2016:
24. August
http://www.looduskalender.ee/forum/view ... 85#p495685 (Bea)

2017:
20. August
http://www.looduskalender.ee/forum/view ... 92#p548292 (Cessie)
http://www.looduskalender.ee/forum/view ... 39#p571039


2018:
26. August
viewtopic.php?p=613130#p613130 (Sunshine)
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Post by Bea » March 24th, 2019, 1:44 pm

°°°°°°°°°

°°°°°°°°°

Statistic from our forum member Sunshine - thank you!
Sunshine wrote:
August 10th, 2018, 11:02 am
Checked a statistics about when the ospreys were last seen on the nest. Hopefully this year's very warm summer will make them linger a bit more..

For Irma:
in 2013 - she was last sighted on 23 August
in 2014 - 21 August
in 2015 - 19 August
in 2016 - 24 August
in 2017 - 20 August
in 2018 - 26 August

So Irma might presumably start the migration any time from 19 to 24 August. (2018)

Chicks:
in 2013 Kaido last seen on 8 September, Kenno 12 September
in 2014 Elar and Aino were last seen on 12 September
in 2015 Yolanda last seen on 5 September, Niina on 15 September, Thor on 19 September
in 2016 Ivar last sen on 4 September
in 2017 Daimar was last seen on the nest on 27 August and Daisi on 11 September
in 2018 Kaja was last seen on the nest on 3 September, Heli and Jaak on 6 September

So the young osprets can presumably migrate any time from ~ 27 August to 19 September (2018)

The male:
in 2013 Ilmar was last seen on 12 September
in 2014 Ilmar was last seen on 12 September
in 2015 Joosep (J3) last seen on 18 September
in 2016 Ivo last seen on 4 September
in 2017 Ivo last seen on 11 September
in 2018 Ivo last seen on 6 September

So Ivo might presumably start his migration journey any time from ~ 4 September to 18 September
(2018)

viewtopic.php?p=610263#p610263

I took the freedom to continue the datas in Sunshines quote, for better and ongoing overview / Bea
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Post by Bea » March 24th, 2019, 1:45 pm

°°°°°°°°°°°°°°°
Forum member mogga made a summary of the most common fish that is brought to the nest - thank you, mogga!
mogga wrote:
June 18th, 2018, 11:31 pm
Once more the charts with the fishes Ivo typically delivers.
Now including the missing ones that Bea mentioned in addition. :laugh:

Image

Image

Image

All pictures taken from http://www.luontoportti.com
Except 'Common carp' and 'Mirror carp' taken from https://www.wikipedia.org/
viewtopic.php?p=596637#p596637
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Post by Bea » March 24th, 2019, 1:45 pm

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Post by Bea » March 24th, 2019, 1:45 pm

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Post by Bea » March 25th, 2019, 3:15 pm

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Post by Bea » April 2nd, 2019, 1:10 pm

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Post by Bea » April 2nd, 2019, 1:30 pm

°°°°°°°

Hello and welcome to all osprey fans - the camera was spotted online! :loveshower:

seira and Hellem noticed it first, I´ll leave their posts in last years´ topic, as a "bridge" to the new season here

viewtopic.php?p=640720#p640720

I prepared the new topic already "behind the curtains", it had to wait to come to the light and --- *wwrrroooummmm* ---- now we are ready to start!

In the first posts of this years´ topic you will find all the statistics and lists that were made from forum members during the last seasons, all very good summaries of all the datas that are interesting for us every season.

Thank you all for this good work!
We have a superduper community of active members here, who are contributing to provide such a bunch of informations :thumbs:
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Post by skyhawk » April 2nd, 2019, 2:00 pm

I want to congratulate everyone with such a wonderful event :wave: We can say that spring really has come! And now we are waiting for our Irma and Ivo :loveshower:

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Post by Bea » April 2nd, 2019, 2:20 pm

°°°°°°

Just want to let you know that I got a note from Urmas that he will probably go to the nest once more to clean the camera lense, before ospreys return.

When he was at the nest site today, he saw two White tailed Eagles flying, an adult and a juvenile, maybe they can be seen in cam view again in case they are still in the area.

:wave:
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Post by Mayflower » April 2nd, 2019, 3:45 pm

Eagerly waiting! :loveshower:

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Post by olgapyat » April 2nd, 2019, 4:51 pm

Hello everybody! :wave:



The raven was in Irma's nest.

Edited by Bea, to make video preview visible

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Post by lispet » April 2nd, 2019, 5:17 pm

Great catch Olgapyat! A very black and a very self-confident first visitor :thumbs:

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Post by olgapyat » April 2nd, 2019, 5:24 pm

Thank you all. :rolleyes: Especially admins for patience. :slap: I wanted to show the raven, because it is huge. Or the nest has become much smaller.

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Post by Bea » April 2nd, 2019, 5:29 pm

°°°°°°°

No worries olgapyat, everybody here in the forum was a beginner once :wink:

German saying in English ----> "Practice makes perfect"

I think the nest was shrinking a bit over the winter, like every year, with rain and snow on it. But as soon as one of the ospreys will start working on it, it will become bigger again.

But the corvid looks really huge! It looks as if it wanted to crack a walnut.
Nature does nothing in vain (Aristoteles)

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