Hi, my hen has actually been making this noise for a while now. Usually it's not every day- maybe 4 or 5 times out of the week though. Most of the time this lasts for a really long time, practically the whole day. I have a link to a video of her doing this. She'll do it, won't for a minute or so, then will start back up again. I've been reading about gapeworm, but I'm not really sure it that's what it is. Skip to around 20 seconds, and once it's around 40 she's pretty much done for that segment. But it can get really loud to the point where I'm in my room upstairs and I can hear her outside. Please Help!!