Rail

Rail hunting is done at or about high tide. The higher the tide, the more successful the hunt. Rails first choice to avoid being captured is to run, second choice is to hide, third is to swim and the last choice is to fly. The marsh grass closest to the water, grows further apart and taller than the thick grass up on the marsh.
At low tide the Marsh Hens will use the cover of that grass to either run behind you or stay far ahead of you. As the tide rises and water floods the tall widespread grass, the Rail are forced into the shorter and thicker grass further up on the marsh. This restricts their ability to run, they are now left with 3 options. Close to half of the Rail that hide and then decide to takeoff, will flush behind you. 

You can think of rail hunting as a faster paced Pheasant hunt. You should be wearing gym socks, shoes that shed water, long pants (not jeans), a belt and or suspenders. Your pants typically get wet up to your knees. You are not required to wear orange but it's recommended. Bring something to carry your birds while hunting (Pheasant vest). Number 6 non-toxic shot or smaller is recommended.