I've been a-googling, but not come up with much. Keepers Lodge Poultry, Lichfield 01543 673399.
Or there's a poultry breeder an hour's drive from you: Dupmill Game Farm Services, 01952 882534.
Even if they haven't got any Orps, they might know who does.

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~ What do I think of Western civilisation? I think it would be a very good idea ~ Gandhi