I am very new to chickens. A casual aquantance gave me five chicks about 6 weeks ago because she was just going to step on them and I told her I was wanting to start a backyard flock and could I have them instead. She agreed and gave me what I though were five Golden Phoenix week old chicks. They all looked the same when younger, but as they have grown, three of them are not looking like their mother. Could these be roosters or are they just a mixed breed, as I know she had several different breeds of roosters? Looking at the picture, the chick on the left looks like a Golden Phoenix hen the chick on the right, is the one in question. Thanks for the help as I can not keep the roosters and would not like to put any more feed in them than necessary.