Jõgeva County (new nest -2025) / Must-toonekurg 2

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marika.solo
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Re: Jõgeva County (new nest -2025) / Must-toonekurg 2

Post by marika.solo »

youtube chat info - thx to everyone
YouTube comments do not reflect all nest events throughout the day, including chick feedings; therefore, the log is unfortunately incomplete.

Nest Activity Log 07/08/2026 (in the evening - whole day)
Log compiled from chat observations and structured with the assistance of Gemini AI.

📊 Events Timeline

Morning / Forenoon
06:46 Departure of one fledgling from the nest.

07:31 A fledgling moved onto the branch on the left side of the nest.
07:41:51 Departure of fledglings, leaving the nest temporarily empty.

07:43:34 A fledgling returned to the nest from the branch.
07:46:55 Departure of a fledgling from the nest.

08:16:14 Return of one fledgling to the nest.
08:17:49 Return of a second fledgling to the nest.

09:39:20 Arrival of the adult male carrying a branch; departed at 09:44:17 without delivering food.

10:10:07 Two fledglings displayed begging behaviour towards an adult bird perched on a lower branch outside the camera frame; adult departed at 10:19:06.

11:48 Arrival of the adult male; feeding delivered to the fledglings.
11:56 Fledglings displayed begging behaviour as an adult black stork landed on a lower branch at 11:57 and departed at 11:58.

Afternoon / Evening
15:22 Departure of one fledgling, leaving one fledgling resting on the nest.
15:30 Departure of the remaining fledgling, leaving the nest empty.

16:05:11 Return of one fledgling to the nest.
16:12 Departure of the fledgling from the nest.

16:25 Return of one fledgling to the nest.
16:28 Arrival of the adult male; feeding delivered to the single fledgling present.

16:33 Return of the second fledgling to the nest.

18:39 Arrival of the third fledgling; all three fledglings present on the nest.

Summary Highlights:
* Feedings:
Two feedings delivered by the adult male at 11:48 and 16:28 (the latter for a single fledgling present on the nest).
* Nest activity:
All three fledglings spent the night in the nest. Fledglings were active during the day, practicing flights, leaving the nest empty at times, and exploring surrounding branches.
* Adult behaviour:
The adult male visited the nest multiple times, bringing nest material (a branch) at 09:39, perching on lower branches, and delivering food.
* Note on female absence:
No sightings of the female parent were recorded. The female's absence is natural at this stage - all fledglings are capable of flight. After laying two clutches and successfully raising three chicks, she has likely departed to rest and begin her migration.
marika.solo
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Re: Jõgeva County (new nest -2025) / Must-toonekurg 2

Post by marika.solo »

​​07:41:51 and next empty nest (to me for the first time)
07:43:34 storklet from the branch flew in

Image
marika.solo
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Posts: 28144
Joined: 29 Sep 2021, 09:38

Re: Jõgeva County (new nest -2025) / Must-toonekurg 2

Post by marika.solo »

who is this stork?
10:10:07 begging display - 2 chicks are present (no adult stork in camera frame); on 10:12:24 adult stork is visible on the lower branch; 10:19:06 departure

Image
marika.solo
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Re: Jõgeva County (new nest -2025) / Must-toonekurg 2

Post by marika.solo »

previous day (07.08) viewtopic.php?p=63320#p63320
next day (09.08) viewtopic.php?p=63445#p63445


August 08
Hello everyone :-)

CHICKS
- 1st chick: 76 days old (hatched late evening 24.05)
- 2nd chick: 75 days old (hatched early morning 25.05)
- 3rd chick: 75 days old (hatched afternoon 25.05)
Brood reduction by male
- 4th chick: 20 days old (hatched late evening 26.05)
- 5th chick: 17 days old (hatched afternoon 28.05)
prof. Zielinski (youtube chat info):
The direct cause was that male brought an insufficient amount of food, resulting in nutritional stress, which is the biological trigger that prompts adult birds to start the process of brood reduction.


MAIDEN FLIGHT
- 03.08.2026 at 16:22:45 a short flight by one of the storklets (? 70-71 days old)
- 04.08.2026 at 10:00 longer flight by one of the storklets (? 71-72 days old)
- (05.08 - 2 fledglings for sure, 1 stayed on the nest)
- (06.08 - all 3 fledged?)
- 07.08 - 3 fledglings for sure (empty nest) - 74 days old

FEMALE last noticed on 06.08.2026

1/ By tracking 35 chicks with transmitters, Polish researchers found that these young birds permanently left their nests at an average of 87 days of age, with a maximum of 108 days. Before their definitive departure for migration, the fledglings initially fly within an average distance of up to 200 meters, and as they get older, this distance increases to an average of up to 500 meters.(Dr. Anderwald)

2/ Survival rates are higher for chicks that spend more time at the nest after fledging, as they return to the nest and gradually gain independence while still receiving food from their parents. For another 2 to 4 weeks after becoming able to fly, they will return to the nest to rest or spend the night. (Dr. Strazds)

3/ Fledglings learn to search for foraging sites and acquire food on their own only after their definitive departure from the nest (migration). (prof. Zielinski)
marika.solo
Site Admin
Posts: 28144
Joined: 29 Sep 2021, 09:38

Re: Jõgeva County (new nest -2025) / Must-toonekurg 2

Post by marika.solo »

youtube chat info - thx to everyone
YouTube comments do not reflect all nest events throughout the day, including chick feedings; therefore, the log is unfortunately incomplete.

Nest Activity Log 08/08/2026 (in the evening - whole day)
Log compiled from chat observations and structured with the assistance of Gemini AI.

📊 Events Timeline

Morning / Forenoon
06:18:04 First fledgling departs.
06:20:27 Second fledgling departs.
06:23:51 Third fledgling departs; nest is empty.

06:42:01 One fledgling returns to the nest.
06:46:17 Fledgling departs.

07:23:00 Calls of cranes heard in the vicinity.

08:16:52 Adult male arrives at the nest.
08:17:55 Adult male arranges branches in the nest.
08:37:59 Adult male departs without fledglings present.

08:38:33 Begging calls heard off-camera.
08:49:03 One fledgling arrives at the nest.
08:50:00 Second fledgling arrives; both beg for food.
08:50:26 Adult male returns to the nest.
08:50:43 Adult male feeds the fledglings.
08:53:20 Adult male departs.

08:55:16 Adult male returns.
08:57:37 Adult male departs without entering the nest.

08:59:22 Stork flies past the nest.
09:00:00 Two fledglings present (710M observed on the branch, 710J in the nest).
09:31:00 A stork flies past the nest.
09:36:00 Wing flapping heard off-camera, indicating the third fledgling is nearby.

10:03:00 Fledgling 710N arrives at the nest.
10:25:00 Fledgling 710M departs.
10:25:43 Fledgling 710M returns.
10:56:30 Camera zooms out.

Afternoon / Evening
18:30:00 Adult male arrives and feeds the fledglings.
18:37:27 One fledgling departs.

Summary Highlights
Feedings: 2 feedings observed (08:50:43 and 18:30:00, both by the adult male).
Identified Fledglings:
710J, 710M, and 710N confirmed present at various times during the day.
marika.solo
Site Admin
Posts: 28144
Joined: 29 Sep 2021, 09:38

Re: Jõgeva County (new nest -2025) / Must-toonekurg 2

Post by marika.solo »

Image

Image

Image
marika.solo
Site Admin
Posts: 28144
Joined: 29 Sep 2021, 09:38

Re: Jõgeva County (new nest -2025) / Must-toonekurg 2

Post by marika.solo »

Image
marika.solo
Site Admin
Posts: 28144
Joined: 29 Sep 2021, 09:38

Re: Jõgeva County (new nest -2025) / Must-toonekurg 2

Post by marika.solo »

the 3rd chick is flying around the nest (M, J and N are on the nest)

Image

Image

Image
marika.solo
Site Admin
Posts: 28144
Joined: 29 Sep 2021, 09:38

Re: Jõgeva County (new nest -2025) / Must-toonekurg 2

Post by marika.solo »

only two are on the nest for night resting
(one fledgling departs after feeding at 18:37)

Image

(The camera stutters very, very often. Off and on and off and on… )
marika.solo
Site Admin
Posts: 28144
Joined: 29 Sep 2021, 09:38

Re: Jõgeva County (new nest -2025) / Must-toonekurg 2

Post by marika.solo »

previous day (08.08) viewtopic.php?p=63389#p63389
next day (10.08)


August 09
Hello everyone :-)

CHICKS
- 1st chick: 77 days old (hatched late evening 24.05)
- 2nd chick: 76 days old (hatched early morning 25.05)
- 3rd chick: 76 days old (hatched afternoon 25.05)
Brood reduction by male
- 4th chick: 20 days old (hatched late evening 26.05)
- 5th chick: 17 days old (hatched afternoon 28.05)
prof. Zielinski (youtube chat info):
The direct cause was that male brought an insufficient amount of food, resulting in nutritional stress, which is the biological trigger that prompts adult birds to start the process of brood reduction.


MAIDEN FLIGHT
- 03.08.2026 at 16:22:45 a short flight by one of the storklets (? 70-71 days old)
- 04.08.2026 at 10:00 longer flight by one of the storklets (? 71-72 days old)
- (05.08 - 2 fledglings for sure, 1 stayed on the nest)
- (06.08 - all 3 fledged?)
- 07.08 - 3 fledglings for sure (empty nest) - 74 days old

FEMALE last noticed on 06.08.2026

1/ By tracking 35 chicks with transmitters, Polish researchers found that these young birds permanently left their nests at an average of 87 days of age, with a maximum of 108 days. Before their definitive departure for migration, the fledglings initially fly within an average distance of up to 200 meters, and as they get older, this distance increases to an average of up to 500 meters.(Dr. Anderwald)

2/ Survival rates are higher for chicks that spend more time at the nest after fledging, as they return to the nest and gradually gain independence while still receiving food from their parents. For another 2 to 4 weeks after becoming able to fly, they will return to the nest to rest or spend the night. (Dr. Strazds)

3/ Fledglings learn to search for foraging sites and acquire food on their own only after their definitive departure from the nest (migration). (prof. Zielinski)
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