My son did not know what a cuckoo looked like. The first time he saw it, he came running saying – ‘Mama, look, a demon bird’. The name has stuck. And come to think of it, why does it need to have red eyes?!? Does look a bit like bird-shaped Balrog. And if that does not prove it is a demon, look at how it cunningly lays its egg in another bird’s nest and let that chick throw the other legitimate inmates out! Demonic, indeed!