I know he/she is pretty young to try to identify but I'm really hoping that it's a roo, my barred rock roo is so mean to my only white pullet so I got her some friends but it would be amazing if they had a roo too. This one has had a pink comb since a week old, is larger than the others, shorter wings, pin feather tail that is shorter than the others.. pretty much everything physical at this age that could point to boy from what I've read.