I have always been worried that my six cats would someday cause a problem with my chickens, but never the other way around. In the last few weeks my young group of chickens ( six 6 month old and five 9 month old) have started bullying my three outdoor tom cats. They run them off of their food and out of their houses. The cats are terrified of them! These aren't large chickens either, quite small. Anyone else ever had a similar problem? I will try to get pictures to post later.