Location 42.170476, -71.364678
Mic Facing South
Approximate Temperature 65 degrees F (guess)
Approximate Humidity 50 percent (guess)
This is the "mastered" version.
1) increasing the amplitude
2) a steep Low Cut Filter eliminating everything below 170 Hz. This eliminates a lot of the energy from highway 109 (MA 109) and side roads.
3) Apply noise reduction using soundtrack pro to better isolate the frog sounds