July keeps giving

After a nice long weekend in Suffolk (a bit of local birding produced a few waders, but nothing out of the ordinary), I'd been back about half an hour when I had a call from Mark Dawson to say he'd got a Garganey at Mons Pool. As a patch yeartick, I headed up there immediately to see it, also bagging my first patch Greenshank of the year, a nice fresh juvenile. 

Mark had already noted that the Garganey was a bit odd, in that it appeared to have white outer tail feathers - and actually more extensibe than on a female Teal... but in all other respects, it looked like a Garganey (Mark had seen the speculum), seemingly an adult (with rather brown and worn looking primaries and tertials). So presumably just an aberration.