There are some insecting eating birds and bats which dine on mosquitoes, and there is a white ground orchid which is pollinated by them. There is a place for mosquitoes in this universe. However, that doesn't mean that I like mosquitoes or won't kill the one feeding on my sweet blood. And if there is a breeding place for them, I'll probably pick up the phone and call the guys at whatever mosquito abatement district to deal with it before we are up to the wazoos with them. If 2-3 other puddles have to get treated, too? Carolly