 These include the wandering shrew ("Sorex vagrans"), the common or Eurasian shrew ("Sorex araneus"), and the short-tailed shrew ("Blarina brevicauda").The nature of shrew sounds unlike those of bats are low amplitude, broadband, multi-harmonic and frequency modulated.They contain no ‘echolocation clicks’ with reverberations and would seem to be used for simple, close range spatial orientation.