Kowalski: What? I thought that was what we were all nodding about. Skipper: (hits Kowalski) No one's gonna die! [to Private] Y'know what you got, kid? You've got us. We've got each other. If that ain't a family, I don't know what is. (He salutes Private, who salutes...
On the other hand, the QMD also involves similar head swinging but the bills are kept shut and the display is accompanied by a humming sound. Further, the arriving bird may circle the nest nodding its head gently. The resident bird may also leave the nest and circle or circles after ...