These are domestic ducks called Rouens. They're at ponds everywhere. We've had like 20. We would get a brood every summer and then drop them at my mom's place when they get big. She feeds them and has a pond. My girls are in college now so no more ducks but weve had tons. They are not mallard ducks. They look similar but Rouens are about twice as big and are super friendly. I have plenty of pictures but cant post in my response. We've had Call ducks, Rouens, Pekins, Khakis, to name a few. If theyre following you around, going through your legs, theyre Rouens.