Hi and Welcome! I also live right outside of Augusta ( Farmingdale). You could possibly check Annabessacook vet in Monmouth, I know they deal with "farm animals" so there might be a chance they do chickens too. I've also contacted the cooperative extension and found them helpful, and also, this website has been majorly helpful! Being willing to do a little "vet" work yourself will be very helpful!
Oh I dont mind playing vet myself as long as i know I wont do any harm. and from some of the things that people do for birds is WAY different from the normal cat and dog things I am familiar with LOL