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

[Maria L]

głęboki sen... poduszka z zapachu ryb zadziałała jak narkotyk


wstaję

[Maria L]

wypróżnienie




wypróżnienie

[Maria L]

pielęgnacja

[Maria L]

[Maria L]

pielęgnacja


wypróżnienie


pielęgnacja

[Maria L]

Tibu i nocny motyl


niespodzianka - zachowała się jeszcze jedna ryba!


dobranoc

[marika.solo]

by our forum member Bozena Isia - thank you

Ringing

[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 18/08/2026 (in the evening - whole day)
Log compiled from chat observations and structured with the assistance of Gemini AI.

Events Timeline

[marika.solo]

previous day (18.08) viewtopic.php?p=63906#p63906
next day (20.08)

August 19
Hello everyone

CHICKS
- 1st chick: 66 days old (hatched on 14.06)

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


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)

MAIDEN FLIGHT
CHICK FLEDGED (FORCED FLIGHT/RINGING) on 17.08.2026 IN THE EVENING 64 DAYS OLD.

male Kergu started migration on 13.08.2026 - migration thread viewtopic.php?f=200&t=384
female Kerli started migration on 18.08.2026 - migration thread viewtopic.php?f=200&t=385

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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]

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): 21–26 Aug for our storklet.
CHICK FLEDGED (FORCED FLIGHT/RINGING) on 17.08.2026 IN THE EVENING 64 DAYS OLD.

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.

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)
2026 - 13.08 (still the nestling on the nest)

KERLI left for migration
2024 - 22.07 (no nesting)
2025 - 16.08 (3 chicks still on the nest, but already fledglings approx. 2 weeks)
2026 - 18.08 (17.08 ringing evening)