Anas discors , commonly known as the Blue-winged Teal, is a small, migratory dabbling duck native to North America often classified as Spatula discors . Research focuses on their long-distance migration, specific wet-meadow nesting preferences, and dietary reliance on aquatic invertebrates and seeds. Key academic studies cover topics ranging from migratory orientation and predictive movement modeling to the impact of contaminants in their habitats. Anas Discors - an overview | ScienceDirect Topics