Hello all, I need some advice. I live in a condo, I have a big pond in front of my condo, and these two baby female mallard ducks (Thelma and Lousie) were dropped off about a year and a half ago. From what I've heard, they were pets that were no longer wanted so they were dropped off to a body of water, they were born and "raised" in s backyard, so they don't know how to fly. Since day one I've fed them and in the winter time provided them with water to keep them alive. A few weeks ago, a male mallard came around, but didn't stay long. Thelma has been missing for two weeks now, I've looked up and down for her, I don't see her nesting or anything, Lousie is heart broken and just wants to hang out with us because she is so lonely, she quacks all day and night. Any suggestions to what would've happened, remember they cannot fly. Any advice would be awesome.