Have u tried the game farms that actually advertise greys as very few do??
Depends wot u want them for? Think quite dear of Perdix as all reared under pairs of partridge as naturally as possible so not very commercial or big numbers available. As others have said more for re intro projects
I've got 97 u can have the problem is u have to find them!!
Little buggers, put ex layers down the past 2 years but not again cheap but not as good as poults.
I know a few farms that do poults further north, the ex layers come from down south somewhere but i get them throu a 3rd party (the other gamefarmer) so not sure exactly. I could find out for u, usually end june July there available