If it's a black sex-link a roo should have a white spot on top of it's head. However, barred rocks all have the spot.Yay for Fran coming aroundI have one that has been identified as a possible Black Sex Link that just does not want anything to do with me. He ( I say he because seems to act very roo-like though if it is a He I doubt it is a BSL maybe an ameraucana? ) anyhoo he will jump on my lap for a split second and then off he goes.