Don't look for death because you might just find it.
> He climbs the tree so he can see where the squawks of "death,
> death" are coming from, then he's tugged to his own death like a
> puppet on a string by hidden skeletons. I think I got it.
Hmm, I thought it was more a case of curiosity getting the better of him. He climbs the tree to have a look in the nest, sees the dead chick, and his own actions cause him to fall.
I might be totally wrong however............