Synchronised gobbling in Paradise

We strolled down the lane from Halsway Manor in the afternoon, the sun shining, and reached Paradise Farm, where there were guinea fowls, hens, ducks and these two roaming around. They came over to the gate, fanning out their tails, fluffing out their wings, and periodically, triggered by a cockerel crowing just behind, they simultaneously gobbled at us in a threatening manner. It was a sturdy gate, thankfully.