Call the Animal Control Department at (781) 784-1513 to find out if the pet has been reported as missing. If so, you will be given the name and phone number of the possible owner. Also contact the Sharon Police Department at (781) 784-3535 and leave a description of the animal with them.
If you wish to hold onto the pet for a few days to see if the owner turns up, you are required to leave a found report at the Animal Control Office. Otherwise you may bring the pet to the shelter or request that an Officer pick up the animal.
If the animal is a dog and is wearing a Town of Sharon license, the Animal Control Department, Police Department as well as the Town Clerks Office have the information available to contact the owner.