First I am so sorry! I do not look forward to the first time I have a predator get into my coop. I was telling my husband tonight about your snake--mainly because he is the coop builder--and he said his friend at work showed him a picture of a huge black snake that had been eating her chickens. Strange coincidence? Where in Upstate are you?
I am in Buffalo. I can see the walmart in Union from my driveway. Bear in mind this snake was different from the others I had trouble with. this one did not want the eggs. it did not want the one or two week old chicks either. it went for the larger 3 week olds.