dusk study 1708

9:35PM bats are already out but it is relatively windy less midges? less food?? echolocation +-50kHz (The soprano pipistrelle was only formally separated from the common pipistrelle (Pipistrellus pipistrellus) in 1999. The two are called common and soprano because the latter echolocates at a higher frequency peaking at 55kHz, compared with the former which echolocates at a peak frequency of 46kHz.) * Thoughts? Lost in between silence and meaningless sounds resonating like emotions ... Foot note: Is it always the same or varied ??? The same situation & different perspective?