Can we keep one?

We have a little duckie family again this year. A mommy duck was blessed with 10 fuzzy little ducklings, and has only since lost 1(so sad). So every morning we check out the window for the ducklings and count them to make sure they're all there. Anna gets the biggest kick out of the little fuzzies. They have become very comfortable with our yard and come up very close to the house so we get a good look every day! Erin of course wants to keep one and have it as a pet! Ha! We have on a couple of occassions had to save them from other ducks and neighborhood kids, but that's as far as our involvement will go! It amazes me how momma duck keeeps her cool with 9 babies toddling around!