Thanks Hutch.

I see exactly what you mean. I suppose because her mannerism is different when we are out I react differently to it but I can see that I am not being consistent. I do correct her when she barks at home aswell.

I would argue the point that a happy dog does not bark though. When I walk her with my brothers GSP they both bark run and play together all the time - but it is not aggressive behaviour. And I can certainly say she is extremely happy when she is barking at home - all that she is doing is communicating with me/us. I object to her barking (and it is aggressively) at other dogs and people in the street. Incidentally, when she is off the lead and meets another dog she barks and immediately runs to my side. She certainly displays a nervous behaviour and a protective one?

I might try a head collar (not a spray thing but a harness) just as another reminder to her that it is not acceptable to bark and people and dogs???