You-You's new sound

[Sabauda]

Ok, in the last few days our sennie You-You has been making a new sound. He does it when we talk to him, and seems to be a "good mood" sound, which he uses to respond to us. He does not do it when we are out of the room. It's a very very low throaty version of his much louder and higher pitched "crow braaaak", (which seems to have learned from the crows outside our window). It's not the "grumpy growl", and it's not the skirt dance breathy grunt - definitely a new and distinctive sound. Has anyone else heard something like this from your sennie?

[jimpierce7]

may be his flock call. Zoey has something similar too.