Hello all, I have noticed an interesting phenomena that I cannot stop thinking about. Whenever my chickens encounter a cat on our yard, they go crazy and starts screaming, elongating themselves, seeking higher grounds etc. It's pretty cool, because sometimes I can't even see the cat but they somehow sense it (?). But when I take out my pet rabbit to run beside (which haven't happened a lot at all so it's not like they are used to each other) them they seem a bit suspicious at first but then completely ignores the rabbit. Do chickens somehow sense that they are being preyed on? How do they distinct another species vs a predator. How do they know when they are in danger or not? Anyone?