I'll try to find out.
I think this was some kind of beetle. The chick repeatedly dropped it and then picked it up again a bit further. I think it was still alive.
And what was this? I do not know. The chick in the middle threw that small black thing into her beak but released it.
Apparently it was not very tasty, because it was also repeatedly 'released' by the other chick.
I do not know whether it ended up in somebody's tummy.
Dinner time