I keep dumping any standing water I can too. The problem in our yard is the large low wet area, almost wet lands, in the back field. We get geese, ducks, swans, and blue heron. They all stop over and some even choose to raise young. The frogs are so loud at night that you can't hear anything else. We also have bats and barn swallows that live in the barn. None of these things make the slighest dent in the mosquitos around here. It is funny to watch the chickens chase the mosquitos. But with all the spring rain on top of all the winter snow that melted here in Michigan I figured the mosquitos are gonna be really bad.