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Fig. 2. Echolocation calls emitted by Eptesicus bottae in a range of
different situations. (1) Search phase call, (2) another search phase call
emitted prior to a capture sequence, (3) an approach phase call, (4) a call
from the middle of a terminal buzz and (5) a call from the end of a terminal
buzz. For each call oscillograms (upper panels), spectrograms (middle panels
1024 Hanning window, 97% overlap) and power spectra (lower panels) are
illustrated.