They will eat cooked chicken if it's thrown out with other food scraps, but if you are raising your chickens to eat, it probably will not be a good food to give them often (could affect the taste)....
It really depends on where you live. in illinois, its illegal to shoot a chicken and there will be a fine if you do so. either way, most chickens are farm owned and to kill them is illegal period.
Yes, bobcats kill and eat chickens.
A permit can be obtained from the Wildlife Commission for predator control on domestic stocks. Otherwise, it is illegal.
Yes. It is most definitely illegal to kill kangaroos. They are protected animals. Permission for culling is sometimes given to farmers and property owners, but the general public may not hunt or kill kangaroos.
You can't. That is impossible. The only way to get feathers on Minecraft is from chickens.
2207 chickens
Not if you mean "man-eating chickens" Chickens, being omnivores, will kill and eat small rodents and other animals. So the answer is yes, chickens can and will kill for food.
it can transfer diseases to human like bird flue ... !
No.
people
It is illegal to kill anyone.
Generally, predators kill chickens. Not prey. :P Most medium sized carnivores will kill chickens. Dogs, foxes, coyotes, weasels, etc. Not sure about cats, but they could probably kill bantams with no trouble.