That really doesn't look like wry neck to me. In my experience, quail with wry neck can live a full lifespan without much disadvantage. I usually raise mine until they're big enough to eat then cull them.
Crying a lot by itself isn't a cause for alarm, but the other behaviours are.
What are you feeding them?
Is it possible that it has a head injury? Either from flushing and hitting something or others pecking at it?
Are any of the others showing any symptoms at all?
Unfortunately, if it's the...