I have built several vernal pools both in woodland and open meadow/prairie area, and also built both emergent and forested wetlands, so I think our diggers will find homes on our place too. They seem to like low area near our steams as well. Only one of our 3 fish ponds has papershells. I have only seen one salamander on our place (mole), but that was years ago. My son found it near a seep as the last snow was melting. We have mostly reclaimed farmland, so perhaps they are gone? The big creek where most of the surrounding ground drains is considered impaired by the EPA due to animal operations and small-town sewage plants, so the path to our place may be hard for salamanders. We do have huge aquatic and tree frog populations, and the spring peepers can be deafening during courtship.