I've heard the littles talking in the brush. I was thinking alarm, but was not the usual alarm calls, less urgent and high pitched, more talkative. I checked on them and they ceased when I came near, but everything was well. I heard what I thought was one of the pullets trilling from her roost in the trees the other night, quite loudly, and thought she might be warning of something. It was about 1:30 am. I checked around and could find nothing amiss so I went to bed. Everyone was fine in the morning.