Dog, Cat, and Canary

So we've a fairly hapless cat that chases just about everything it can, but couldn't catch a cold. Until one afternoon he espies a canary in a cage in the garden next door. "I know!", he thinks. I shall sneak up on said bird and I'll have it for lunch. Good plan except the bird has his very own guard dog. Not an especially menacing hound, you understand, but one that is roped up and very noisy. No...