Take the lost pet you have found to a veterinary clinic or animal shelter and have them scan it for a microchip.
If there is one, contact the manufacturer of that chip. The two most-used manufacturers are:
If there's no chip, or if the chip isn't registered, then continue reading below.
Contact the local newspaper and place a found ad, then check daily for any lost ads that match the animal you have found. In Albuquerque it is the Journal: 505-823-4444 or 1-800-577-8683, ext 4444, or click here. They offer free lost and found ads both online or called in.