I have 5 mallard ducks 3 male and 2 female. One of my females appears to be sick. As i walked in their pin she was laying down and would not move as i approched her. Her legs are srraight behind her and she is breathing very heavy. I brought her inside because she was very warm when i picked her up. I took a syringe and gave her 2 cc of water. I am unsure what is going on with her. She did start lating eggs about a week ago but had not layed in 2 days. Not sure if that may have anything to do with it or if its some sort of heat stroke. Please advise my 8 year old son loves her. She is the sweetest one out of the bunch. They are about 6 months old now.. help do not want to loose her.