Forgetting to replace the plug is a dilemma many hunters face after a long off-season of upland hunting where there are no restrictions to the use of a plug. Well, almost. Upland hunting has a weird way of throwing bird hunters a curve ball when it comes to hunting those species on the fringe. For waterfowling it’s a given. And we all know dove hunting requires a plug, but so does snipe, rail, sora, and yes, even woodcock. These are all classified as migratory birds and under federal law it limits shotguns to three shells.