problems with hens

Gwyneth just will not fit in. I have now gone back to putting her in a seperate run. M is converting a blanket chest into a temporary house so we can do this weekends event. I do not want to leave her at the mercy of my lovely but very viscious hens who have definitely not accepted my poor little darling. Have arranged all with chicken sitters so she will be ok and maybe in a few months Gwyneth will fit in...........