I have a couple of Welsummer Hens that think they have to announce when another Hen is laying an egg. They stand at the doorway of the coop and just cackle like they themself are laying an egg. It is pretty funny. One did it so long I went to the coop and poked her with my finger and told her to keep still and she Did! I spoke with two other people who had Welsummer hens and they told me that they do the same thing. How about You? From what I hear I think it may be a breed characteristic.