We go outside different times of the night and notice that our ducks are always quacking and talking, no matter what time it is. It can be 10 pm or 2 am or 4 am and they are all yakking away. There are no street lights that they can see, there isn't any lights on at the barn, there aren't any headlights from cars as they are very far from any road. They are cooped up in a 10x14 three sided coop with an open fenced front but I have a tarp over the top part of it. There is probably 2 ft of space on the bottom so they can see out and get air. There is only 22 of them in there so they have lots of room. I have stood outside and listened to hear if anything is setting them off. The dogs bark but often they are on the other side of the farm but I notice a spike in quacking when our dog barks. However, they quack when no one is barking either. My neighbor gets up at 4 am every morning and goes outside and says he hears it. He does not turn on his outside lights but even if he did he lives too far for them to notice it. I go outside to turn the pump off at 10 pm every night and do not turn on any lights but they are talking then. I have found a cat that got locked in the coop the next morning RARELY and figured that could have caused it as they catch mice and would never hurt the ducks but I can see that causing the noise. Do they just not settle well at night or do I need to do something more for them so they can rest better at night?