Feasting on a diet of insects, the warblers arrive in eastern South Dakota along with the bugs. The vast variety of species provides excitement and opportunity. However, it also means the end of Bill’s favorite time of year: migration. This yellow-rumped warbler offers one look at spring’s final visitors. Searching for warblers, identifying different species, and capturing their vibrant color make them a favorite subject. Their arrival is a bittersweet one as it signals the end of migration, and announces a respite for Bill.