OMG that is so Orpington! No No don't give her away. She is behaving normally and she's perfectly healthy. Some of them are vocal. A bit like a Siamese cat can sometimes be very loud. She is likely the alpha chicken of your flock, (flock leader), and she also has a good chance, with a little work, of becoming a very tame and affectionate hen. All of my loudest Orps always have tamed down the best. My other girls love them to pieces and look to my "loud beaks" as if they were a pseudo rooster for the flock.
My first lady Loud-beak I made the mistake of giving away due to her noise, the other hens grieved and complained for days, when I went to the person I had give her to and asked if I could get her back she grabbed the wrong chicken out of her flock of Orps and my ladies all attacked the strange hen! When I took it back and said "wrong hen" and walked out to the flock my Buffy came running and pecked my toes and crooned to me. When I got her home the rest of the flock eagerly welcomed her back and she lived a very long and happy life as queen of the flock. Lesson learned by me, Loud beak hens are the best!