These are absolutely some of the most beautiful ducks I have ever owned.   They are small ducks but these are not call ducks. They are only slightly smaller than a wild type mallard duck.  They are capable of flying so that is something to be aware of.  I keep all of mine in enclosed pens and let them out on the yard several days a week. They have never tried to fly away nor do I think they are capable of doing so, but then that is likely because they are penned most of the time.  Free range Silver Mallards would likely be very good flying ducks.

They are prolific layers of small long eggs. The fertility is usually only around 50% sometimes better but don't expect much more than 50%. I cant explain why, perhaps its just because they lay so many eggs.  I have a good hatches if I place these eggs under a muscovy duck or a setting hen.  I DO NOT have good hatches in an incubator and countless people tell me the same thing.   The mallards will set and hatch their own but only if they are left alone and not disturbed by other ducks.  A setting ducks in a large group of Silver Mallards will never have any peace nor success in hatching their own eggs.