I have seen lots of Blue-winged Teals at the Sequoyah National Wildlife Refuge in Oklahoma this spring. The great thing about these ducks are that you can get close to them most of the time for photographing. They don’t do much but dabble in shallow water at the edge of marshes or open water feeding on plants, molluscs and aquatic insects.
Blue-winged Teal are generally the first ducks south in the fall and the last ones north in the spring. Adult drakes depart the breeding grounds well before adult hens and immatures. Most Blue-winged Teal flocks seen after mid-September are composed largely of adult hens and immatures. The northern regions experience a steady decline in Blue-winged Teal populations from early September until early November. Blue-winged Teal in central migration areas tend to remain through September, then diminish rapidly during October, with small numbers remaining until December. Large numbers of Blue-winged Teal appear on wintering grounds in Florida, Louisiana, and Texas in September. (Wikipedia)