I use the silo sock crane decoys for them. They also come to dark geese spreads. Have shot some over snow goose decoys but not normally. Cranes don't eat fish. They eat snakes, mice, frogs, insects, baby birds(yes that is true) and anything they can catch in the summer. But I have never seen them eat fish. They don't even like water deeper than 2 or 3 inches. In the fall they eat grain just like geese. The meat looks like a huge pheasant when skinned and the color is darker than pheasants and lighter than geese. The population at my house and farm are protected but extreme NW Minnesota is open as well as all of North Dakota. The ones in Minnesota are 8 or 9 pounds but the ones in ND are about 5 to 7. Seen flocks of 5000 in one field out there.