[while talking to the wolf cubs] The one you really have to look out for is the cuckoo bird. Do you know how the cuckoo bird survives? By preying on a mother's weakness. The cuckoo bird is much too clever to raise its own young. Instead, it lays its eggs in another bird's nest. The mother bird is fooled, and it cares for the new chick. But do you know what happens to her own chicks? They starve and die from neglect. [turns toward Raksha] All because a mother loved a chick that wasn't even her own.
[while talking to the wolf cubs] The one you really have to look out for is the cuckoo bird. Do you know how the cuckoo bird survives? By preying on a mother's weakness. The cuckoo bird is much too clever to raise its own young. Instead, it lays its eggs in another bird's nest. The mother bird is fooled, and it cares for the new chick. But do you know what happens to her own chicks? They starve and die from neglect. [turns toward Raksha] All because a mother loved a chick that wasn't even her own.
http://www.moviequotedb.com/movies/jungle-book-the-2016/quote_74815.html