Hi! I'm new here and I've got an issue (potentially more than one). I have a flock of 6 hens, 5 are the same age of about 18 months (4 are Black Copper Marans & one is Salmon Faverolle - Tink aka Tinkerbell) and 1 that is about 9 months. Plus 4 ducks. The 9 month old is a Rhode Island Red...