My female Mallard is coughing and has a soar voice when she talks for the past 5 days. She was been molting heavily for the past week and her water dishes are heavy with down feathers. She's been drinking a lot of water too which is good. So far I have been giving her feed, lettuce, tomatoes and strawberries. Any other suggestions to help her feel better. I will take her to the vet later this week but I can't go right away due to work.