If you look at the saxony, they are like a brownish grey. Hatchery stock doesn't always look exactly like the pics shown. But, you could have a mix. The females look like saxony. If you scroll down, this blog shows a drake with similar head coloring as yours...
Unfortunately there's not much you can do except provide them with essential care. You could spray vetrycin and put neosporin on the areas that are raw. But, the bills won't heal all the way.
What does the rest of the duck look like? Are you familiar with ducks? They need feed and water deep...