Perhaps PQ1 is right. It is usually true in most of the cases with birds i.e peacocks etc. But could the one "talking", be the female and one "listening" (?), be the male? You know how they lop to blah blah blah blah... and we uhu.. yes, uhuh, yes.. or simply keep quite. After all, the sooner you realize that it is not in our health to argue with "them", the better it is. For our own sake. Jest, Indisguise:)