Birds that are disgustingly dirty should be DQed. I'm not talking about a bird that messed in its cage, but one that was obviously simply pulled from its coop/pen and tossed in a cage and brought to the show without any prep. Now some birds manage to stay fairly clean, but many do NOT. One that remains clean may be okay without much or ny prep, but not a muddy/poopy one.

I think all silkies should be prepped before show. Some smooth birds don't need it. They should at least be treated for parasites before the show. I do it as a preventative before and after. For my smooth birds, I only bathe the crested ones, or any that are visually dirty. Only my Houdans needed bathing (and the silkies).