We have a wild mallard female in our yard - fully feathered, but appears young. She's walking around, quacking a bit, and going back and forth between our domestic ducks (who don't seem to care) and the chickens, who are curious. She has been here for almost 30 minutes just hanging around, hasn't tried to fly. She doesn't approach me, but isn't afraid of the ducks or chickens. Is she looking for a nest for eggs, do you think? There are no other wild ducks around that I can see. We live in the North-East of the US. Should I scare her away in case she is carrying anything infectious that could made our flock sick, or should it be fine if she just sticks around? I got a picture of her, but it's zoomed in 20 times because I was afraid she'd take off if I got too close. She looks extremely small compared to our cayugas and pekin. But mallards are smaller than other ducks. She has actually just flown over the fence into the pig pen and is eating some of their food so she isn't injured. I love ducky visitors!