I'm having issues with two of my ducklings. I recently moved them to a bigger pen and the next day two of them appear to have hurt their legs. The first (a female white layer) almost seemed like she was pigeon toed and would constantly step on her foot and trip. Which progressed to her now not even attempting to walk she just scoots around on her belly. The second (a female mallard) just suddenly wouldn't put any weight on a leg and has now also resorted to just scooting around on her belly. They are all about 5 weeks old now and I moved them both to the old pen to keep them separated. Is there anything I can do to rehab them or assist them in anyway? Or any ideas of whats wrong with them?? Any help would be greatly appreciated!