The sounds on the move and chased by bats can be saved and used for identification to the species level in most cases. The latter method based on ultrasound is advocated particularly in inventories because it is not “invasive” (no disturbance because only sounds are recorded) and allows monitoring over long periods (Some detectors can record during overnight).
Kadhaa sampuli mbinu zipo ili kupima aina tofauti na’ wingi wa popo: kutembelea nyumba, kilifanikiwa au filet, ya.. sauti juu ya hoja na kufukuzwa na popo anaweza kuokolewa na kutumika kwa ajili ya utambulisho kwa ngazi ya aina katika kesi nyingi. njia ya pili kwa kuzingatia ultrasound ni ilitetea hasa katika orodha kwa sababu si “vamizi” (hakuna usumbufu kwa sababu sauti tu ni kumbukumbu) na inaruhusu kufuatilia juu ya muda mrefu (Baadhi ya detectors unaweza rekodi wakati wa usiku).