I have a pair of 8 week old d'uccle chicks and the female, Gracie, has a squeaky or horse chirp. The roo is just learning to crow so of course that is the only time he really has a squeaky voice. But other than that, Gracie's everyday chirp is squeaky and horse almost scratchy sounding. Is this normal for this breed of bird? Helps if I spell it right. Sorry.