My mallard girl has been sleeping outside in her new coop for the past few nights. She had been indoors before, but seems to really be enjoying how much more room she has in her coop. She is generally quiet, however, I have noticed that when dusk comes she gets very vocal and excitable (not panicked loud honks, but louder than her usual squeezy-toy noises that she usually makes when she is talking to herself). I thought she was afraid of the dark or something, but once the sun goes down all the way and it is nighttime she is quiet again. Is this normal duck behavior? I'm new at this.