when i first had that problem,my wife said ahh there so cute! hum i said, lets go for a walk,it only took about five minute be for she was almost on the ground after steping in many large holes 3 to 4 foot from the water.that cute thing changed to anger.tryed the coibear way,ended up with wife wacthing a duck flooping around in the water, not good for me.got acolony trap and ESSHUPS RIGHT!its so easy traped them out in no time.