Do rooster's purr?

[Exspiravit]

Helloo, my flock was just having a dust bath and I was sitting around nearby and I hear a purring sound, I set out to investigate and find it was my rooster and later he was again doing it in the nesting box.

Anyone know what this noise means?
Thank you!!

 

[wrathsfarm]

He's talking softly (purring) to his girls, they do it a lot in the nest box or when they find a tight cubby hole their telling the hens this is a really good spot to lay an egg. My two boys do it all the time....