It is World Migratory Bird Day! This red-winged blackbird wants to know what your favorite migratory species is. Let us know in the comments below! #FunFact: Male red-winged blackbirds are some of the first migratory birds to return to the Mississippi National River and Recreation Area each spring. 📷: NPS #MigratoryBirdDay #RedWingedBlackBird #BlackBird #Minnesota #Migration #MississippiRiver