Line breeding or inbreeding won't hurt chickens for many, many, many, many, many generations. In fact it strengthens bloodline traits. So don't worry about that at all. I'll have to check the standard for weights "or you can if you have a copy" as I can't remember for sure. They are one of the...
It must be "McMurray line specific". I wonder even if they are 100% Spanish, or if they have Minorca blood in them. Personally I don't have much faith in McMurray hatchery.
I think your McMurray male is a Minorca "which also explains his larger size". He should have more of a white face by this age. Even my 4 month old males had noticeable white in their faces. All your birds are outstanding looking by the way. Do you still have the info on the ebay seller by...
I am in need of a large breed White Faced Black Spanish rooster. Anybody got one for sale close or will ship to Missouri? Looking for show or breeder quality. Thanks everybody. PM me with replies please.