Cinnamon Teal Duck

Males are an unmistakable rich, dark cinnamon all over. Females can be a bit tricky, but they are bigger and bigger billed than green-winged teal, with a relatively plain face. It’s usually not an issue though: cinnamons are less common overall and they’ll often be in a pretty clear little group of males and females together. That is of course the most widely practiced method of female duck identification: identify the male next to it and call it whatever that bird is.