Its just a evil heartless bird . Its knows What its doing. It’s a evil darkness bird.

@@Golden-ls1sb as hard as it is to watch, I can't agree with you. You are putting human traits onto these birds. Of course, if a human does that to a baby, it is evil. There are all kinds of instinctive behaviors in the vast bird world. Most of it is beautiful, but some is just brutal. But it is true nature.

You know that some bird also retaliate and off the cuckoo's.

​@@Golden-ls1sbit is the host bird fault, why whould they left it there and do nothing about it?

@@Hsssssssssssssssssss can't blame them. Everyone's just trying to survive.