Please place several pieces of your smelliest clothing (dirty socks, sweat-soaked t-shirts, sneakers, etc) in a protected place outside your home to create a scent trail. Add/change items daily to keep scent strong. Do not put out kitty litter box as it alerts predators that a cat might be nearby. Use all possible on-line pet-finding services. Plaster your neighborhood with signs. Leave a window open if you can. Check every enclosure in the neighborhood, every bush,etc. Look at night, not just during the day. When calling, TRY to keep your voice calm and encouraging. Make contact and stay in touch with all nearby rescue groups and vets. Don"t give up. Hoping your buddy is home safe very soon.