Along the Mississippi River Flyway in Iowa, Port Louisa National Wildlife Refuge provides important habitat for migratory birds. Floodplains and forests are used by many wildlife species including migratory songbirds, waterfowl, hawks and eagles, deer, small mammals, reptiles and amphibians. After a recent snowstorm, it’s also a stunning winter sight. Photo by Jessica Bolser, U.S. Fish and Wildlife Service.