Angatuba - Legionaire
New bat calls and echoes
Now it's spring in the southern hemisphere. Here in Brazil where I live, sometimes we are awaked around mid night or 2:00 AM with sounds of bat calls. It's is interesting that these bats chirps are between 9.5 and 7.5 kHz, besides they are low audio frequency (not ultrasound). I think that they are some fruitbat specime, because since I started to feed them (with bananas slices), I noted some enhancement in bat presence. In this spectrogram it's possible to see some bat signals (chirps) but also bluried by his own surrounding echoes.
New bat calls and echoes
Now it's spring in the southern hemisphere. Here in Brazil where I live, sometimes we are awaked around mid night or 2:00 AM with sounds of bat calls. It's is interesting that these bats chirps are between 9.5 and 7.5 kHz, besides they are low audio frequency (not ultrasound). I think that they are some fruitbat specime, because since I started to feed them (with bananas slices), I noted some enhancement in bat presence. In this spectrogram it's possible to see some bat signals (chirps) but also bluried by his own surrounding echoes.