The Pink-footed Goose is an annual code 4 rarity that shows up in the Northeast (USA). I have never had an opportunity to chase one until my recent work trip to Boston. Once I arrived it was easy to find and I was surprised by how pink the legs really were.
The pink-footed goose (Anser brachyrhynchus) is a goose which breeds in eastern Greenland, Iceland and Svalbard. It is migratory, wintering in northwest Europe, especially Ireland, Great Britain, the Netherlands, and western Denmark. The name is often abbreviated in colloquial usage to "pinkfoot" (plural "pinkfeet"). Anser is the Latin for "goose", and brachyrhynchus comes from the Greek brakhus "short" and rhunkhos "bill".