. . "The soprano pipistrelle (Pipistrellus pygmaeus) is a small bat that in taxonomy was only formally separated from the common pipistrelle (Pipistrellus pipistrellus) in 1999.The two species were first distinguished on the basis of their different-frequency echolocation calls. The common pipistrelle uses a call of 45 kHz, while the soprano pipistrelle echolocates at 55 kHz."@en . . . "LC" . "Soprano pipistrelle"@en . . . . . . "iucn3.1" . .