Wildscaping is a fun term used to stand for ecological landscaping, which is a form of landscaping that will make your property look beautiful and benefit wildlife.
Keystone species are plants and animals that benefit more species than others. In a keystone plot several keystone plants will be providing food and shelter to far more insects, birds and other wildlife that other plants, especially those non-native invasives.
Native plants are those that support the insects and their predators such as birds and frogs which have spent thousands of years together developing relationships that help them survive here in America. For example, oak trees can support 532 species of moths and caterpillars whereas the non-native, invasive tree-of-heaven only supports 6 species of moths and caterpillars. What you plant matters!
Absolutely not! Lawn grass serves a purpose for playing and providing nice walking paths around your property; however, kentucky bluegrass supports far fewer moths and caterpillars than other plants which means far fewer birds and other wildlife.
While some people may be allergic to bee stings and some wildlife can transmit disease, the vast majority of wildlife are harmless and are quite afraid of humans so they will go away if you leave them alone as they search for food, water and shelter on your property.