Quality Silver Gray Dorkings are practically non existent at this time, I'm sad to say. I am trying to breed my own strain from several sources and don't have anything worthwhile, yet. I have some thoughts about Murray McMurray... I did get SGs from them in 2005 that were very close to the Standard. Both McM and Urch have bred broodiness out of their strains, so that is something to consider. I, personally, want broody Dorkings.
A couple years ago, I contacted Urch and he said that McM had his line. When my friend contacted McM, they denied this, saying that they had their own strain for some time. I've seen McM SGs recently, both photos and in person, and most are not as close to type as my first birds. This year, I bought a couple culls from a BYC member, who had ordered them from McM. Here they are:
I'm on a serious search for SGs that are closer to the Standard. I met Jeannette Beranger of the ALBC, and she suggested importing some from Canada. So far, no one from Canada wants to help with that. I also spoke with Christine, a SPPA member, who is going to make finding better Dorkings a project.
There are nice Reds and Whites out there, being bred by individuals. If you wants SGs, be prepared to work to bring them closer to the SOP.
Kim