yes they cuss so do guinea fowl.
I have a isa brown that is broody scare me half to death I walked in the coop and there was this loud ear piecing sound "AHHHHHHHHHHHHHH!!!!!!!" I shut the door I thought there was a oppossum in they or a raccoon I never heard this sound so I opened it up and peeked in she now was yelling again just peeking. ALL FLUFFED UP and creaming I giuess "GET OUT OF HERE IA AM DOING SOMETHING" (I cesored this) and she in no means was about to stop. To bad I took her and put her out. the guineas are bad for this across the road they have guineas and they come acrosss sometimes one time I was getting my mail and they were saying just awful thing I know they were by the tone of their voice mean and hateful things I am glad I could understand them but cursing and names and what else they could say I bet they were giving my the riot act.
Rhayden