continuation:
16:12:15 Female arrived at the nest. Feeding delivered; fish and possibly a frog.
16:12:26 Female flew away.
16:30:49 Male arrived at the nest. Feeding delivered - a grass snake.
16:31:10 Male flew away rapidly.
17:17 Environmental note: High temperatures on the nest. All chicks are showing signs of heat stress, walking around with open bills (gular fluttering/panting).
18:42:10 Female arrived at the nest. Feeding delivered; three chicks managed to feed. The ringed chick (Bonus) was positioned awkwardly, blocked by the female's legs, and was only able to secure a single food item.
18:42:28 Female flew away.
22:45 All chicks are resting/sleeping on the nest.
Biological & Field Notes
Feeding Dynamics (Bonus): During the 18:42 feeding, the adopted/foster chick (Bonus) missed out on the main portion of the meal due to poor positioning behind the female's legs, highlighting the impact of physical blocking on chick feeding success.
Thermoregulation: The observation at 17:17 of chicks with open bills is a standard thermoregulatory response (panting/gular fluttering) used by black stork chicks to cool down when exposed to direct sunlight on the nest.
Karula National Park 2/ Must toonekurg 4
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marika.solo
- Site Admin
- Posts: 26899
- Joined: 29 Sep 2021, 09:38
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marika.solo
- Site Admin
- Posts: 26899
- Joined: 29 Sep 2021, 09:38
Re: Karula National Park 2/ Must toonekurg 4
previous post (21.06) viewtopic.php?p=59865#p59865
next post (23.06)
June 22
Hello everyone
CHICK
() +
- 1st chick: 31 days old (hatched in the night 21./22.05)
- 2nd chick: 31 days old (hatched in the night 21./22.05)
- 3rd chick: 30 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
next post (23.06)
June 22
Hello everyone
CHICK
() + - 1st chick: 31 days old (hatched in the night 21./22.05)
- 2nd chick: 31 days old (hatched in the night 21./22.05)
- 3rd chick: 30 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
-
marika.solo
- Site Admin
- Posts: 26899
- Joined: 29 Sep 2021, 09:38
Re: Karula National Park 2/ Must toonekurg 4
youtube chat info - big thx again and again to @СветланаКлюева-н6у 
English translation only from now on – assisted by Gemini
Nest Activity Log – 22/06/2026
02:50:00 – 03:31:00 – Technical screen / stream interruption.
04:28:00 – The adopted chick (Bonus) woke up making growling defense calls. Consequently, all the other chicks started growling as well. No predator or visitor was visible. The chicks calmed down shortly after.
05:24:00 – Observation: Fog is visible deep in the forest surrounding the nest.
07:56:03 – Arrival of the female.
07:56:05 – Feeding by the female. The food was likely freshly caught fish. During regurgitation, the female's throat appeared thick and a large food bolus came out.
07:56:13 – Departure of the female. Note: If the fish was caught recently, it did not have time to move lower into the digestive tract before regurgitation.
08:18:04 – Arrival of the male.
08:18:06 – Feeding by the male (fish). A large food bolus was regurgitated for the chicks.
08:18:23 – Departure of the male.
08:30:00 – Observation: The necks and crops of all the chicks are well filled after the feedings.
09:00:00 – Biological note on feeding behaviour (answer to one question): Black stork parents do not feed their chicks directly into the bill. Due to the shape and structure of the stork's bill, the parents always regurgitate the food onto the bottom of the nest, and the chicks must pick it up and swallow it by themselves.
English translation only from now on – assisted by Gemini
Nest Activity Log – 22/06/2026
02:50:00 – 03:31:00 – Technical screen / stream interruption.
04:28:00 – The adopted chick (Bonus) woke up making growling defense calls. Consequently, all the other chicks started growling as well. No predator or visitor was visible. The chicks calmed down shortly after.
05:24:00 – Observation: Fog is visible deep in the forest surrounding the nest.
07:56:03 – Arrival of the female.
07:56:05 – Feeding by the female. The food was likely freshly caught fish. During regurgitation, the female's throat appeared thick and a large food bolus came out.
07:56:13 – Departure of the female. Note: If the fish was caught recently, it did not have time to move lower into the digestive tract before regurgitation.
08:18:04 – Arrival of the male.
08:18:06 – Feeding by the male (fish). A large food bolus was regurgitated for the chicks.
08:18:23 – Departure of the male.
08:30:00 – Observation: The necks and crops of all the chicks are well filled after the feedings.
09:00:00 – Biological note on feeding behaviour (answer to one question): Black stork parents do not feed their chicks directly into the bill. Due to the shape and structure of the stork's bill, the parents always regurgitate the food onto the bottom of the nest, and the chicks must pick it up and swallow it by themselves.