This gorgeous grasslands bird has the longest migration of any North American songbird. In Spring they migrate from the rice fields and pampas (grasslands) of South America in Bolivia, Paraguay, Brazil and Argentina to the grasslands and hayfields of North America – a roundtrip that can total over 12,000 miles! They like returning to the same location each year to breed and will often raise nestlings with help from their offspring from earlier years, or from adults whose nests failed. Easy to identify, they are the only bird in North America who is black underneath and white on top….at least during breeding season. They undergo two complete molts which give them two completely different appearances – a South American look in winter and a North American look in summer.