It's definately not an eclipse drake. Drakes have a more yellow/orange bill and black tip that does not change color when they eclipse. Also, the male will retain an orange ring in the iris of the eye. they will also retain a bit of the white temperal stripe but not much and head will be more of a grey in color with the a white throat area. This is a hen, no doubt about it if in doubt check this out
http://www.hunter-ed.com/wildlife/waterfowl.htm