the way they used to decoy ducks , was for a small red coulerd dog looking somthing simalar to a fox.
the nets wernt across the rivers, or they wernt in the old books i red at least.
they would do this on specialy constructed lakes and ponds. at veriouse intervals around the lake there would be inlets, these would be quite wide at the enreance going back many feet, as they got further from the lake the narrower these inlets got untill there was no water. now halfway along these inlets they would put netting across the top as tall as a man . this then got lower the farther from the e