Our guys are indoors so thankfully they have never killed another living creature! unless you count insects, which of course i should! I always know when there is a fly in the house and it usually means its time to grab a helmet because the boys forget that human heads arent to be used to get higher into the air!
i also always know when there are spiders or other little creepy crawlies because they all congregate around it
They are absolutely fascinated by our pet mice and will sit next to their cage watching them for hours often sliding out a paw to pat the cage and sometimes jumping on top of it
luckily our two little girlie mice are fearless and if i had to bet money on who would win a fight between them and the boys? im sorry but i have to go with the mice
Other then that ours pretty much just hunt Da Bird at the moment! that toy has been clear cut proof that we could never ever have pet birds!