Two of my "girls" suddenly became boys in a twelve hour period so after close inspection i was positive that at least two other girls were roos but i am not sure. the two in question are a rhode island red and a black sex link. both have small combs with.very light color and wattles that are more visible then my other girls but no where near as big as my boys. they are about twelve weeks old so is it possible i am seeing roos when really they are hens. can't send picsj, sorry.