In my experience, you normally get more of the whistling type noises from IJ's than any other carpet. I have heard it from small ones as well as heavier ones, but mostly from IJ's.


I am curious about your carpets though. Do you know in fact that they had a respiratory infection before they were put on a course of antibiotics??? I would hate to see any animal put through that when in fact they were not even sick to begin with.