I'm really hoping someone can help me understand why my duck is behaving so strangely... I have only kept ducks for a couple years and this is the first time I've seen one behave like this. I have two females, a Cayuga and a Black Swedish. In August, I brought home three ducklings (all girls). After acclimating the ducklings to the rest of the flock (I have chickens also), my Swedish appeared to adopt them and take them in as her own. They followed her everywhere, and she took on the role of doting mama. It was pretty darn cute. The ducklings are full grown now, and still follow her everywhere... not sure if that is an issue or not? But the REAL problem is that my Swedish has slowly taken up a new habit - she quacks very, VERY loudly, all day long, for seemingly no reason at all. It literally sounds like she's screaming. If I approach her, she puffs up her feathers and dips her neck very low, sticking it out as she walks. The only thing I could think to do was separate her, like I would do for a broody hen. So I put her in a cage in the garage for a couple days. She kept up her screaming all day long on both days, until I had had enough and let her back out. Not that it helped matters... she went right back to it once she got outside. Any ideas on what's happening? Maybe I didn't wait long enough with the cage? Should I start shopping for a quack collar?