Female indigos are bright brown and the painteds are a deep green. Painted buntings sometimes stay to nest. Migrating through Robins are thrushes but come here in winter. Several other thrushes pass through in migration. Some of them are Swainson s, veery, wood, and gray-cheeked, all of which have gray brown backs and spotted breasts, and forage mostly on the ground.
Many flycatchers pass through.
Most difficult to identify are the small empidonax. They all have white eye rings and only very knowledgeable birders try to say to which species they belong. Scissor-tailed flycatchers are lovely. So are eastern kingbirds. All are flycatchers.