Karula National Park 2/ Must toonekurg 4

[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 06/08/2026 (in the evening - whole day)
Log compiled from chat observations and structured with the assistance of Gemini AI.

Events Timeline
data mostly by user Natalia / @Наталья-б9с7й

Morning / Forenoon

05:00 Fledglings 7201 and 7202 are in the nest; fledgling 710L (Bonus) is perched on the left branch.
05:09 Fledgling 7203 arrives at the nest.

05:24 Fledgling 7201 departs.
05:25 Fledgling 7202 departs.
05:29 Fledgling 710L moves to a closer branch.
05:30:00 Fledgling 7203 jumps onto a branch.

05:30:48 Fledgling 7203 departs into the forest.
05:31:02 Fledgling 710L departs into the forest.
06:13 Fledgling 7203 returns.
06:15 Fledgling 710L returns.

06:20 Fledgling 7203 departs.
06:27:58 Fledgling 710L departs into the forest; nest is empty.

06:31 Camera stream offline until 07:01, when all four fledglings are present in the nest.

07:49:14 Fledgling 7203 jumps onto a branch above the nest.
07:58 Fledgling 7203 jumps back into the nest.
07:59 Adult stork arrives briefly from the left without delivering food and departs.

08:05:49 Fledgling 7203 jumps onto a branch.
08:07:04 Fledgling 7203 departs into the forest.
08:10:37 Fledgling 7202 departs to the left.

08:27 Fledgling 7202 returns to the nest.
08:30:52 Fledgling 7203 returns.
08:56 Feeding observed (small provision of naturally collected prey/amphibians).

09:00:40 Fledgling 710L departs into the forest.
09:01:33 Fledgling 710L returns to the branch above the nest.
10:30 Three fledglings in the nest; 710L remains on the branch above.
11:09:20 Adult arrives and delivers food (fish/amphibians); 710L joins from the branch. feeding

Afternoon / Evening

13:55:40 Fledgling 7201 departs.
14:00:55 Fledgling 710L departs into the forest.
14:11:26 Fledgling 7203 departs.
14:16 Fledgling 7202 departs; nest is empty.

15:16:39 Fledgling 7203 returns.
15:19 Fledgling 710L returns.
15:20:39 Adult arrives with fish; 7202 returns simultaneously; feeding occurs for 7202, 7203, and 710L.

15:32:20 Fledgling 7201 returns.
15:32:38 Adult arrives from the left and delivers fish. feeding

15:51:49 Adult arrives and delivers fish. feeding

18:20 Fledgling 7203 interacts with 710L.
18:30:39 Fledgling 7203 jumps onto a branch.
19:14 Fledglings 7201 and 7202 manipulate a piece of wood in the nest.

19:19:30 Fledgling 7203 departs into the forest from the branch.
19:21:47 Fledgling 710L departs to the left.
19:25:01 Fledgling 7201 departs.
19:27:01 Fledgling 7202 departs; nest is empty.

19:49 Fledgling 7201 returns to the nest.
20:50:20 Fledgling 710L returns from the left.
20:53:17 Fledgling 7202 returns to the nest.
20:54:36 Fledgling 7203 returns after flying past the tree; all four fledglings are present in the nest for the night.

[marika.solo]

[marika.solo]

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August 07
Hello everyone

CHICK () +
- 1st chick: 77 days old (hatched in the night 21./22.05)
- 2nd chick: 77 days old (hatched in the night 21./22.05)
- 3rd chick: 76 days old (hatched on 23. 05)
- 4th: on 24. 05; brood reduction by female on 28.05 - 4 days old

- one chick, Bonus 2, adopted on 18.06

MAIDEN FLIGHT
- on 26.07 at - 7203
- on 27.07 at - 7201
- on 29.07 at - 7202
- on 01.08 at - 710L / Bonus

Maiden Flights & Chick Age:
26 July: 1st chick (7203) – 65–66 days old
27 July: 2nd chick (7201)– 66–67 days old
29 July: 3rd chick (7202) - 67 days old

Note on fledging age: The chicks became fully flight-capable slightly earlier than the standard Baltic reference range (68–72 days). This earlier maiden flight (at 65–66 days) was primarily facilitated in my opinion by an abundant and consistent food supply throughout their development, promoting optimal feather growth and physical condition.

Leg Ring Identification:
Three of the chicks carry rings 7201, 7202, and 7203, while the adopted/foster chick (referred to as "Bonus") carries the distinct ring 710L.

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]

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
data mostly by user Natalia / @Наталья-б9с7й

[marika.solo]

feeding - frogs



one o them grabbed one bigger piece of something and there is tug of war for it

[marika.solo]

12:25:14 storklet returned with this prey (rat?)



again tug of war - one piece for 7201 and the next for 7203



7203 returns