The animal shelter can scan for a microchip and check their database for lost dog reports; add a found dog report. They're open 9-5 M-S. Their number is(203) 946-8110. Last resort is you can leave the dog there but better for it if you have the capacity to foster. My experience with them a couple years ago was positive but in that case we wanted to keep the dog....if that's the case, you need to advertise the dog as found in the Register for seven days and if nobody claims it, it's yours! Good luck and thanks for looking out for our furry friends!