Since having my flock... I usually hear *nothing* coming from the coop after 'bedtime'. Maybe the occasional flutter of rearrangement or someone getting crowded off a roost. (why must they all want the exact SAME spot... with 20 ft. of unused roosts all around?) Last night, and tonight, I've heard a hen do a very quiet "bawk bawk bawk" (always three together) while on the roost. Often... every 30 seconds to a minute. I don't believe I've really ever heard it before, at least it's never drawn my attention if there was any random noise. This evening after hearing it, I went out... found the hen that was doing it... picked her up and listened to her breathing/chest, etc. Nothing unusual heard. She's acted completely fine during the day... she doesn't do it during the day like she has the last two nights. She's laying, eating, drinking, scratching around... all seems perfectly fine. I'm assuming she's FINE... but what's with the 'bawk bawk bawk' while roosting all of a sudden? Any behavioral reason I should be aware of.... 'normal' vocalizations at night(?) or....? FWIW, my flock has CRD, I belive it's MG (99.9% sure, just not officially diagnosed by vet/testing)... but no one is currently sick... just assumed carriers. Perhaps that's not relevant, but who knows!