Tiếng một số loại chim sẻ:
http://www.mbr-pwrc.usgs.gov/id/framlst/Song/h5860so.mp3
http://www.mbr-pwrc.usgs.gov/id/framlst/Song/h5400so.mp3
http://www.mbr-pwrc.usgs.gov/id/framlst/Song/h5630so.mp3
http://www.mbr-pwrc.usgs.gov/id/framlst/Song/h5600so.mp3
http://www.mbr-pwrc.usgs.gov/id/framlst/Song/h5750so.mp3
http://www.mbr-pwrc.usgs.gov/id/framlst/Song/h5810ca.mp3
http://www.mbr-pwrc.usgs.gov/id/framlst/Song/h5810so.mp3
http://www.mbr-pwrc.usgs.gov/id/framlst/Song/h5850so.mp3
http://www.mbr-pwrc.usgs.gov/id/framlst/Song/h5500so.mp3
http://www.mbr-pwrc.usgs.gov/id/framlst/Song/h5460so.mp3