Snipes are like Empidomax flycatchers, they are really hard to tell apart. A Jack Snipe would have a much more defined facial pattern, and the sides would be streaked and splotched, rather then barred.
It is impossible to tell from this picture what snipe species it is. If you are quite certain it is a Jack Snipe, I recommend trying as hard as you can to reach a local expert, and have him/her check it out. Look in the phone book, call information, check online, I don't know. just try to reach an expert.
I hope it is a Jack Snipe!! Even though it is probably a Wilson's.....
Good Luck Birding
Josh