I have a two year old japanese banty. the sister of the one in my avitar. she has always seemed to sneeze more than my other chickens but for the past few days to a week the sneezes have become more frequent and sound like a dog bark. It has gotten dramaticaly warmer than it used to be in the past few weeks I don't know if that may correlate. Then tonight I went to lock up my chickens and my banty was barking and then hiccuping after and looked like she was about to choke or was having a hard time breathing. please help!