I wish I had some pics for you but I don't.
For quail we always used a sharp pair of scissors, cut the head off quick, drained over a garbage can, cut the lower legs off at the joint, cut the wing tips off, skinned by cutting along the breast bone, and then using the scissors cut the breasts off the backbone.
If you choose to use the whole bird then slice an x in the vent area, pull out the internals with one finger, and run under cold water. Most of my quail processing was done in the kitchen sink.
Once you do a few you'll be a pro in no time.
Checked for pics but can't find any good ones.
For cooking you can find all kinds of gourmet quail recipes but I always used my rotisserie or deep fried the breasts and legs with no breading. Quail are yummy.