My bird feeders lure Carolina wrens and tufted titmouses—titmice?—but I can't stand to see rodents raid the seeds. So I devised a fortified feeder. Hang a modified 2-liter soda bottle between two ...

Bird species have unique behaviors and preferences. Macaws, for example, use their powerful beaks to tear apart materials that less destructive birds such as canaries show no interest in. Budgies and ...