August 23
Hello everyone
Tibu: 70 days old (Tibu was released near the fish basket near Karula's nest):
- forced maiden flight (ringing day): 17.08 in the evening 64 days old
- forced maiden flight (rescuing day): 19.08 in the evening 66 days old
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 Tibu.
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 Tibu.
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 Tibu.
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.
7202: 93 days old
- maiden flight: 29.07 - 67 days old
