Today I noticed one of my half grown guinea fowl is acting sick. Its less active than the others.. and walking with its head tucked into its body.. Its not eating as much as the others.... but still drinking. Its breathing seems slightly laboured.. and its wings are a bit droopy and its tail is bobbing a bit... all very minor signs.. nothing to drastic.. like its not struggling for breath or coughing etc. I have put it in a cage separated from the rest, but still in the same coop so it can see its flock mates.. I want it to rest and have free access to its food.. not have to fight the others for it. Any idea what could be wrong? Any advise what I could do? Some of my chickens had a mild respiratory disease a few weeks ago.. with some coughing and raspy wheezing, but they all got better on their own and are fine now. Can a guinea fowl catch a similar disease from the chickens? And, if so, will it react the same? Thanks.