I have continued my sporatic autumn nighthawk coverage on a limited basis, results are fed into the, now expanding, SuAsCo nighthawk migration survey. This season's results from High Ridge are below:
Season toal 525
Below I have compiled some data from the Furbush Bird Club's annual publication "The Chickadee", of peak annual Common Nighthawk counts going back 25 years. I have also included the peak count from 2007 (to date) from Rick Quimby's Central Massachusetts sightings web site. Keep in mind these are one night high counts as reported to "The Chickadee" editorial committee and NOT season totals, so these maybe of little statistical significance, but I feel worth a look. I have included the year, the date, person(s) reporting the sighting, town location and number reported and the 3 year average.
The graph below is of the table listed above with the blue data line the annaul peak count and the pink a 3 year running average. The black data line is a linear trend line of the annual peak count data.