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

Morning / Forenoon
05:35 All four fledglings (7202, 710L, 7203, 7201) standing on the nest rim.
05:38:12 Departure of fledgling 7201 from the nest.
05:47:00 Departure of fledgling 7202 into the forest.
05:47:41 Departure of fledgling 7203.
05:49:00 Departure of fledgling 710L (Bonus) into the forest.

06:48:00 Simultaneous return of fledglings 7202 and 7203 from the camera side, and 710L from the forest.
07:11:00 Return of fledgling 7201 to the nest; collective begging vocalisations.
07:13:25 An adult bird arrives at the nest without food and departs shortly after.

08:56:24 Fledgling 710L flies to a neighbouring tree on the left.
09:10:13 Fledgling 710L departs from the neighbouring tree into the forest.
09:15:13 Fledgling 7203 jumps onto a branch.
09:18:17 Fledgling 7202 departs into the forest, accompanied by 7203 leaving from the branch.
09:33:46 Return of fledgling 7202 to the nest.
09:34:00 Return of fledgling 7203 to a nearby branch.
09:49:23 Fledgling 710L lands on the branch beside 7203 and moves down into the nest.

10:11:07 Fledgling 7203 jumps into the nest from the branch; intense begging vocalisations.
10:11:40 Arrival of parent; feeding delivered (frogs).

12:03:35 Departure of fledgling 710L into the forest.
12:06:43 Departure of fledgling 7201.
12:08:06 Departure of fledgling 7203.
12:09:15 Departure of fledgling 7202.

Afternoon / Evening
12:21:00 Return of fledgling 7202, followed shortly by the others; 7201 arrives last.
12:22:25 Feeding delivered by parent. Fledgling 7201 regurgitates food item and briefly leaves before returning at 12:25:14.
12:25:27 Fledgling 7203 takes food item from nest-mates and departs the nest, returning at 12:27:30.

15:03:35 Arrival of parent on a tree branch, then into the nest; feeding delivered (fish).

16:06:30 Feeding delivered by parent.
16:07:00 Stream camera offline.
16:31:00 Stream camera online again.

19:44:50 Fledgling 710L observed allopreening 7201 on the nest.
20:29:37 Feeding delivered by parent.

20:37:04 Fledgling 7203 jumps onto a branch.
20:46:15 Fledgling 7203 jumps back into the nest; all four fledglings vocalise in anticipation of feeding.
20:47:00 Feeding delivered by parent (fish).

21:06:00 Feeding delivered by parent consisting of a large quantity of fish.

Summary Highlights:
* Feedings:
Seven feedings delivered throughout the day to the four fledglings (7201, 7202, 7203, and adoptable Bonus 710L) at 10:11, 12:22, 15:03, 16:06, 20:29, 20:47, and 21:06.
* Nest activity:
Extensive flight activity in and out of the nest throughout the day by all four fledglings, including interactions with surrounding branches and trees.
* Adult behaviour:
Parent visited the nest briefly at 07:13 without delivering food, provoking loud begging vocalisations before departing.
* Technical note:
Stream offline briefly between 16:07 and 16:31.

[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? - "water rat" ? = water vole /Arvicola amphibius)



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



7203 returns

[marika.solo]

[marika.solo]

[marika.solo]

previous post (07.08) viewtopic.php?p=63336#p63336
next post (09.08)

August 08
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

Morning / Forenoon
05:29:24 Fledgling 7203 jumps onto a branch.
05:34:38 Chirping heard off-camera; 7203 jumps back into the nest at 05:34:43.
05:35:19 Adult arrives from the left and delivers a feeding (large fish) for all four fledgling.

05:41:33 Fledgling 7203 jumps onto the branch again.
05:59:18 Fledgling 7203 departs into the forest.
06:05:19 Fledgling 7202 departs into the forest.
06:05:34 Fledgling 7201 departs into the forest.
06:08:08 Fledgling 710L departs into the forest.

06:08:55 Fledgling 7201 returns to the nest.
06:10:52 Fledgling 710L arrives on a branch and moves to a neighbouring tree at 06:13:06.
06:36:52 Fledgling 7202 arrives at the nest to join 7201; 710L remains on the neighbouring tree.

06:50:37 Fledgling 7201 departs.
06:50:51 Fledgling 710L departs from the tree.
06:55:04 Fledgling 7202 departs into the forest; nest is empty.

07:04:22 Fledgling 7202 arrives from the camera side.
07:10:55 Fledgling 710L arrives from the left.
07:22:59 Fledgling 7201 arrives.
07:55:46 Fledgling 7203 arrives at the nest.

08:35:04 Fledgling 7202 departs into the forest.
08:50:05 Fledgling 710L departs into the forest.
08:53:37 Fledgling 7201 departs.
09:01:20 Fledgling 7203 departs into the forest; nest is empty.

09:36:05 – 09:37:15 All four fledglings return to the nest in sequence (7202 at 09:36:05, 7203 at 09:36:43, 7201 at 09:36:54, 710L at 09:37:15).

11:41:32 Fledgling 710L departs towards the camera.
11:47:39 Fledgling 710L returns to the nest.
11:48:02 Adult arrives and delivers a small feeding; all four fledglings present.

Afternoon / Evening
12:50:00 – 13:16:29 Stream outage due to buffering; video restored at 13:16:29 with all fledglings present.
13:38:15 Adult arrives and delivers a feeding.
14:08:16 Fledgling 710L departs into the forest.
14:13:46 Fledgling 7201 departs into the forest.
14:14:44 Fledgling 710L returns from the camera side; 7201 flies past and lands on the tree to the left at 14:14:55.
14:15:47 Fledgling 710L departs the nest again.
14:27:55 Fledgling 7202 departs from the nest and 7201 departs from the tree into the forest; 7203 remains alone on the nest.
14:30:10 Fledgling 7202 returns to the nest.
14:30:47 Fledgling 7201 returns to the nest.

14:32:00 – 15:01:31 Stream outage due to buffering; video restored at 15:01:31 with three fledglings present.

15:20:03 Adult arrives and delivers a small feeding for the three fledglings present (7202, 7203, 7201).
15:21:39 Fledgling 710L arrives from the forest, having missed the feeding.

17:05:10 Adult arrives and delivers a feeding.

17:40:00 – 17:50:00 Rain recorded at the nest site; sun emerges by 17:50.
17:53:26 Adult arrives from the camera side and delivers a very brief (3-second) feeding.

18:02:40 Fledgling 710L interacts with the rope near the tree trunk.
18:16:42 Fledgling 7203 jumps onto a branch.

18:18:00 – 18:48:20 Camera offline.

18:48:20 Stream restored; three fledglings present including 7201.
18:58:57 Fourth fledgling returns; all four fledglings present.
19:06:23 Three fledglings present.
19:09:23 Two fledglings present including 7202.
19:18:22 – 19:20:46 Fledgling 7202 departs; 7203 remains alone on the nest.
19:34:20 Fledgling 7201 arrives to join 7203.
19:54:50 Fledgling 7202 arrives from the left.
20:31:00 Fledgling 710L arrives; all four fledglings present for the night.

Summary Highlights
Feedings:
6 feedings recorded (05:35:19, 11:48:02, 13:38:15, 15:20:03, 17:05:10, 17:53:26).
Identified Fledglings:
7201, 7202, 7203, and 710L (adopted Bonus).
Technical Notes:
Multiple stream interruptions occurred (12:50–13:16, 14:32–15:01, 18:18–18:48).