... also, if, by some cruel act of fate you have one duck or chicken that is lonely because she is alone, you sometimes have to get a new baby.
For example I had 2 ducks and one passed to the magical pond in heaven, the remaining duck was lonely so I had to get a duckling. But you know sometimes babies don't survive so you need to get 2. Also, babies need to be at least 3 to make a little sleeping pile otherwise they sometimes just die from being cold. You would not want the lonely duck to have 2 new babies and then they die! She just lost her sister and would be devastated to have a baby die too. So we lost 1 duck and now we have 4, which is actually just 2 because we are replacing the one who died.