Join Date: Oct 2005
Location: Newcastle upon-tyne, UK
as a general rule of thumb, the cat is in season between march to october, displaying 'calling' behaviour every 2-3 weeks for approx a week. but due to changed environments, lifestyles etc cats can come into season earlier or later than that time slot. for example, it used to be fairly unusual to get winter kittens but now it is very common.
cats are induced ovulators, meaning they release an ova when mated, this is the cats bodies way of almost 100% ensuring it gets pregnant, hence the massive population of cats due to non-nuetering...