Maybe 150 of them? First time I tried on a bike helmut. Sure seemed to work.
Another tour of the old woods road at Quabbin, this time on the NE side from gate 33. Lots of stops, sometimes just to listen, sometimes to use the binoculars and/or the camera. Out almost 5 hours, wonderful.
Lots of FDFs, but only bothered me for a couple of minutes in the middle (must have been going through a dense population of them) and then a few minutes at the end (when the blue tape was at capacity).