The sewage lagoon in Woodstock is located off the Beardsley Road. If you are coming down the Beardsley Road after taking the exit where Murray's restaurant is, you take the dirt road right after Daniel Dr. on the left.
I've only been going to this spot for exactly one year. I only knew it existed because of the Woodstock Christmas Bird Count. In the past year I already found 18 different species in the lagoon which I have listed below;
Eurasian Wigeon - stayed for almost one month http://birdingnewbrunswick.ca/photo/eurasian-wigeon-5
American Black Duck
Canvasback - stayed for at least 4 days and just long enough to be added to the Winter Bird List for 2014-2015 http://natethebirder.blogspot.ca/2014/11/canvasback.html
A very nice line-up there Nathan; thanks for sharing. Over the years, I'm sure you will add many more species in the area.... don't forget to look for the species that might be around, rather than on, the lagoon.
Thanks Joanne. There is a snowmobile/ATV trail that goes around the lagoon that I walk from time to time. While looking for the Canvasback again a few days ago, I did happen to hear Golden-crowned Kinglets. I found them there last winter as well. I saw a Ruffed Grouse there once and six warbler species. I can just click on Beardsley Road in ebird and I've found nearly sixty species in the area so far.