The Jade Mallard is, by far, the most common bird in many of the swamps
and marshes in the Eastlands. So common is the Jade Mallard, that is
represents the "free" space in Wetland Nature Bingo. This shockingly
green swamp-dwelling waterfowl was briefly hunted for its beak which
some thought to actually be made of jade, though it was quickly learned
that this was not the case.