ajohn

This looks to me more like a Pintail/Swinhoe's Snipe:
- Broad buff supercilium
- Relatively narrow loral stripe
- Relatively poorly marked cheek bar
- Short tail
- 'Plump' appearance
- Shorter bill than Common Snipe

There are already a few Pintail/Swinhoe's Snipe back in HK this autumn. They are often slightly earlier migrants than Common, so the date would not be unusual.