My 9 month old fawn and white female runner duck is making very loud squeaking quacks sometimes very randomly, although she just made the sound three times in a row a couple mins ago, these squeak-quacks are much louder than her normal quacks or chitter, is this normal? Does she possibly have something in her mouth when she is making these sounds? If anyone has any ideas on why she might be making these noises I would appreciate hearing them.