I have 14 BR babies that are 4 weeks and 7 weeks old, all together (I know it normally isn't a good idea to do that but they came from the same place and they like each other) They are super friendly every time I go in their pen but they have a strange evening ritual. I always sit on a bale of hay in the pen but at night instead of 2 or 3 at a time coming to visit, they ALL come and sit on me, cuddle and rub against me and they SING. It is not a noise I have heard come from a chicken--kinda like the warning trill but it is soft and happy sounding. Closer to the sound a dove makes. Anyone else have serenading chickens?