Went out tonight about 9.30pm to lock my girls in as they free range most the day and they were already back in their hutch waiting to be locked in (this is normal), anyway Charlie was in the blue boxy thing they sleep together in and lola was just in the corner looking a bit miffed (she is normally the more dominant one). When i locked the hutch up i popped in some extra hay to keep em warm and when lola went to go in the blue tub charlie started giving off this noise like a low drum hum not the usual squeak as if warning her , this is most odd , i went to pick up lola and she did tootle in the blue box with her and they both went quiet then the noise started again and she came back out!? I observed for a bit and she aint letting her in. They are both girls, sisters and they have lived happily for 5 years almost. I have left them to it.... anyone else had this?