So my two polish chickens have recently started making a new noise, that I'm not sure what to think of. About two weeks ago they were attacked by stray dogs, and are now separated while the one's injuries heal up. At night, when they're calm, we've been putting them back together to spend some "support time" with each other. They have both started making a noise that sounds like a mix between a snore, a zipper being pulled, and a stomach growl.... I've never heard this! It's definitely not a "coo" - it sounds gutteral! Is this a good thing, or a bad thing? Because I only notice it when we reintroduce them to each other at the end of the day, I don't know if it's a reassuring greeting, or a wary warning. Any ideas?