Sorry but id say roo. See the the saddle feathers and hackle , pointy feathers around neck. Sussex are slow developers but I have no problem sexing them at 5-6 weeks.Guys I need some help. I have to ask the age old question hen or roo, regarding my speckled sussex Iris. I also asked in the sussex thread but everyone here replies quicker. Everyone at home this morning but myself, heard Iris make some noise which they think was some feeble attempt at crowing this morning. I adopted her at 12 weeks, she had been sexed but the lady at city chicks said they had had a few 'gender benders' in the past, which is understandable of course. As she grew I had no reason to think otherwise, no early crowing, or comb development. If she is a he I can take him back and he can live out his days there, without ending up in a pot. What do you all think? She is six months old, and very friendly.