Just have to find some of that dun stuff 
Baz
If you cant find hen hackles the right colour, use the inside feathers from the base of a Moorhen or coots wing, It'll give you the right kind of colour and be nice and soft too
Incidently the picture mike posted was the lighter version of the waterhen bloa tied with the inside wing feather, If you are looking at the photos and the sparse bodies, its the traditional way to tie them, I suppose it depends what you are looking to imitate.The sparse bodies are primarily meant to be Upwings, which have translucent bodies. Midge are often quite tranluscent too, whereas Sedge and stonefly are solid colours and are dressed more heavily or with thread bodies.
I like the way you did the one in your picture, tied with lime or orange it should be very effective as a slow sinking midge pupa imitation with just a little kick about it
I'd personally use a Starling back feather (nice iridescent green/purple/black) for the lime and i'd tie the orange with Golden plover (like the hares ear in the photo mike put up) or a dark greewells/cochybondhu hen (with nice light tips). I'd try to tie through the hackle like i did in the SBS it will lift the hackle out and make it kick
Two of my favourites, from the last 2-3 years have been the partridge and peacock and the Black peacock and plover, they are great allrounders and seem to work on most waters i've tried at all times of the year, but particularly well just sub surface.
Link to original post on these flies
http://www.fishingthefly.co.uk/forum/index.php?topic=93.0Sandy
