The male Ogris and the female Meija are watching little Benjamin very closely. They keep touching him, almost as if they want to grab him. At 18:51 Meija even rolled him a little bit away from the other chicks, but the youngest one managed to get back to them.
Hopefully, things will calm down. However, as I wrote before, it is better to raise three strong chicks than four weak ones (the third chick is also a bit small and behind).
Currently, Meija only brings big frogs. The two smaller chicks cannot catch and swallow them. Only Ogris brings small fish that they can actually eat.
Why the parents are hesitating with "brood reduction":
- Instinctive Conflict: For an adult stork, harming or removing its own chick is extremely difficult. It goes directly against their strong instinct to protect and warm everything that moves and chirps in the nest. This is why we see only "gentle" moving or testing with the bill. It is a sign of this internal conflict.
- Waiting for Natural Development: Parents often wait to see how the situation develops on its own. If the youngest chick is small but still active and fighting, the parents will give it a chance. They usually make a radical decision only if there is a severe lack of food and the older chicks start to starve, or if the youngest one stops moving completely.
-----
more scientific information to brood reduction and parental infanticide here:
viewtopic.php?p=943#p943