Pärnu county (Kergu + Kerli) / Must-toonekurg 3

[marika.solo]

[marika.solo]

previous day (08.08) viewtopic.php?p=63406#p63406
next day (10.08)

August 09
Hello everyone

CHICKS
- 1st chick: 56 days old (hatched on 14.06)

EGGS
unhatched (laid on 13.05 at 22:22 and 16.05 at 02:05)

Stork chicks grow exponentially. 90 days in the nest is like 18-21 years for humans. This means that 1 day in the nest is like almost 3 months for a human child. That is why their transformation is so amazing and fast.

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Info on the late nesting:
- viewtopic.php?p=57312#p57312
- viewtopic.php?p=57325#p57325
- viewtopic.php?p=57342#p57342

[marika.solo]

For our storklet (the late-hatched chick now 56 days old), the decisive factor will be
1/ whether the adults continue to find sufficient food and
2/ whether parental care continues to take precedence over the increasing drive to migrate.

KERGU left for migration
2022 - 12.08 ( 2 chick)
2023 - 29.07 (no nesting)
2024 - 30.07 (no nesting)
2025 - 11.08 (3 chicks still on the nest, but already fledglings approx. 1 week)

KERLI left for migration
2024 - 22.07 (no nesting)
2025 - 16.08 (3 chicks still on the nest, but already fledglings approx. 2 weeks)

1/ Chicks become capable of flight at 68–72 days of age (maiden flight). The timing of the maiden flight depends on several factors. (Urmas Sellis)

- Estimated MAIDEN FLIGHT (68–72 days): 19–22 Aug for our storklet.

2/ By tracking 35 tagged chicks, Polish researchers found that young storks left the nest permanently at an average age of 87 days, with the latest departure recorded at 108 days. Before their definitive departure for migration, fledglings usually fly within an average distance of about 200 m from the nest. As they grow older, this distance gradually increases to about 500 m. (Dr Anderwald)

- Estimated DEFINITIVE DEPARTURE (87 days): 8 Sep for our storklet.

3/ Survival is higher in chicks that remain at the nest for a longer period after fledging. They gradually become independent while still receiving food from their parents. For another 2–4 weeks after the maiden flight, they may return to the nest to rest or spend the night. (Dr Strazds)

- Estimated end of the regular post-fledging nest period (about 2 weeks after the maiden flight): 2 Sep for our storklet.

4/ During the post-fledging period, young storks mainly practise flying, landing and manoeuvring close to the nest. According to Prof. Zieliński, they learn to locate feeding sites and forage independently only after their definitive departure from the nest during migration.

[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 09/08/2026 (in the evening - whole day)
Log compiled from chat observations and structured with the assistance of Gemini AI.

Events Timeline

Morning / Forenoon
08:00:00 The chick is observed arranging twigs in the nest.
08:26:00 The fledgling is resting/sleeping.
11:03:33 Kergu arrives at the nest - a small feeding.
11:03:58 Kergu steps onto the branch.
11:04:10 Kergu departs from the nest.

Afternoon / Evening
18:43:33 Kergu arrives and delivers food, bringing a comparable amount of food to the morning delivery.
18:44:16 Kergu departs from the nest.

20:07:50 - 20:08:22 Kergu arrives for a third small feeding.
21:20:00 - 21:21:00 The fledgling is alert and appears to notice someone near the nest.

Summary Highlights
Feedings recorded:
3 small feedings exclusively by the adult male, Kergu (at 11:03, 18:43, and 20:07).
Parental presence:
Adult female Kerli was absent throughout the day.

[marika.solo]

11:03 feeding by KERGU

[marika.solo]

18:43 feeding by KERGU

[marika.solo]

20:08 feeding by KERGU

20:06:01 begging display
20:07:48 Kergu landing (from right)
feeding - some fish
20:08:20 Kergu out (his usually direction)

[marika.solo]

[marika.solo]

[marika.solo]

some today shots