I see that this an older thread, Grumpy Andy, and iit may open the door to bring some people back who have not been on here for a while. Yet again it must not have the replied wanted here. First time I have seen this you tube video,Nathan. Still a great bit of filming to enjoy, and to met you in real life. Yes, Swans have their way of greeting people and must know if people are being kind to them with all the feeding that they get. They are spoilt and well looked after, and they know it. I think they have their own language and way of telling you how they are feeling. The fluffed up feathers is one way of telling you to leave them alone that is an obvious one for a start Not sure what the head bobbing means, and might be a Swan greeting you for mutual respect, and the grunting saying they are happy to meet you. Just my own observations here without a swan language book LOL
Regards
Kathy and Dave
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