This year the Princeton CBC will be held on Sunday, December 15, 2019. Please let Brad Merritt know if you are interested in joining this year’s count.
Each count group has a designated circle 15 miles in diameter-about 177 square miles–where they try to cover as much ground as possible within a 24-hour calendar day.
List of all NJ Counts http://www.princeton.edu/~llarson2/misc/cbc2016.html
More information about the Christmas Bird Count project is available from the National Audubon Society web site: http://www.audubon.org/conservation/science/christmas-bird-count