I ordered some Delaware eggs off of E-Bay to start my own flock. They hatched about 10 weeks ago. There is 5 roosters and 4 pullets. 3 of the boys are huge,square and will be ready for the table soon. The 4th rooster is a little bid smaller and the 5th rooster is smaller yet. My question is which rooster should be kept for breeding purposes Thanks for your help.