Speaking of bird killers, this white cat is beautiful, but deadly. It is checking out the birds at the feeder near our house. Outdoor cats are the worst enemy of birds, small rodents, butterflies, and other small animals. Every year millions of animals are killed by cats that are allowed to roam free outdoors. Many owners talk about how cute it is when their cat brings a squirrel, rabbit, vole, etc. to their doorstep, to me it is just one less small animal to live!