Birds tend to be safer from cats when they are older, though rodents tend not to learn to avoid cats. The RSPB offers advice to cat owners who also want to protect birds. Birds are most vulnerable when they are nesting, and benefit from cover offered by hedges, and plants with berries, Nest boxes should be located by prickly bushes, and birds should be fed on tables located away from possible cat launch pads, like walls and trees. Cats can also be fitted with a device called 'The Liberator' from Highcraft, which warns birds by flashing and beeping when cats jump up, but does not warn mice since cats move down to catch mice. All cats have an inbuilt desire and ability to stalk and catch prey.
Some breeds are better hunters than others.
Russian Blues prefer to be indoors. Breeds with long faces are better able to grasp prey, while flat-faced breeds like Persians cannot hold prey as easily. Most British cats are not pedigrees and their ability to hunt is linked to the way their mother brought them up. Cats do not hunt any less if they are neutered, and can focus on hunting more if they are not distracted by sex. 2 pages long Trade in cat and dog furs in China has been uncovered after an 18th month investigation by members of the Humane society of the US and Humane Society International.