OK I HAVE SOME CHICKS THAT ARE 3 weeks old now... my ? is can a roo "become" a roo over night ??!! it has turned in to a little jerk jumping on backs & biting!! pulling feathers & down outta who ever it gets a hold of, it dont really have a comb but that lil spot has some red in it 2day??!!! the only thing that i done diff was cut them some grapes yesterday other than that nothing has change .. i am getting ready to put them in a larger brooder & i hope this will help these are my first chicks. TIA 1 2 3 4 this would be the chick in question.. 5 6 *i did put them in a bigger brooder & they have clamed down * but does any body know if i have some hens or roos here & possibly what kind they are??