Tough to tell from the spectrogram Diane. It shows a ~5 ms section of a steeply descending call. It appears a higher pitched portion above 8 kHz is chopped off. Perhaps in the territory of flying squirrel chirps with this one. Can you make a spectrogram showing the frequencies above 8 kHz or does your system just use a 16 kHz sampling rate?
Bill E p.s. very nice flight occurring tonight across the northeastern sector of the USA. http://weather.rap.ucar.edu/radar/displayRad.php?icao=KUSA&prod=bref1&bkgr=black&endDate=20141011&endTime=-1&duration=0 From: Diana Doyle Sent: Friday, October 10, 2014 8:13 PM To: NFC-L@cornell.edu Subject: [nfc-l] NFC ID Help, Maryland Eastern Shore Hi night-listeners, I'm slowly picking my way through a couple of recording sessions from about a week ago, done from a very quiet wooded cove anchorage on the Eastern Shore of Maryland. I have one occurrence of one call that is stumping me. I'm a novice at this, so would like some expert opinions. What I'm seeing here is the "lightning bolt" pattern. The Evans and O'Brien CD talks about Lark Sparrow having a "irregular squiggle in the middle" and having quite a bit of variation in the placement of the other component (such as across the top, forming a "T"). Could this be a Lark Sparrow? (A handful were reported from the region on eBird.) Or is it something really simple and obvious that I'm missing in my beginner's hunt-and-peck search of the CD? So far in the rest of the recording I've picked out American Redstart, Northern Parula, Palm Warbler, Common Yellowthroat, and Chipping Sparrow. It's fun to be on the really steep part of the learning curve! Diana Doyle Recording from m/v Semi-Local Annapolis, Maryland -- NFC-L List Info: Welcome and Basics Rules and Information Subscribe, Configuration and Leave Archives: The Mail Archive Surfbirds BirdingOnThe.Net Please submit your observations to eBird! -- -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- Hi night-listeners, I'm slowly picking my way through a couple of recording sessions from about a week ago, done from a very quiet wooded cove anchorage on the Eastern Shore of Maryland. I have one occurrence of one call that is stumping me. I'm a novice at this, so would like some expert opinions. What I'm seeing here is the "lightning bolt" pattern. The Evans and O'Brien CD talks about Lark Sparrow having a "irregular squiggle in the middle" and having quite a bit of variation in the placement of the other component (such as across the top, forming a "T"). Could this be a Lark Sparrow? (A handful were reported from the region on eBird.) Or is it something really simple and obvious that I'm missing in my beginner's hunt-and-peck search of the CD? So far in the rest of the recording I've picked out American Redstart, Northern Parula, Palm Warbler, Common Yellowthroat, and Chipping Sparrow. It's fun to be on the really steep part of the learning curve! Diana Doyle Recording from m/v Semi-Local Annapolis, Maryland -- NFC-L List Info: http://www.NortheastBirding.com/NFC_WELCOME http://www.NortheastBirding.com/NFC_RULES http://www.NortheastBirding.com/NFC-L_SubscribeConfigurationLeave.htm ARCHIVES: 1) http://www.mail-archive.com/nfc-l@cornell.edu/maillist.html 2) http://www.surfbirds.com/birdingmail/Group/NFC-L 3) http://birdingonthe.net/mailinglists/NFCL.html Please submit your observations to eBird: http://ebird.org/content/ebird/ -- -- NFC-L List Info: http://www.NortheastBirding.com/NFC_WELCOME http://www.NortheastBirding.com/NFC_RULES http://www.NortheastBirding.com/NFC-L_SubscribeConfigurationLeave.htm ARCHIVES: 1) http://www.mail-archive.com/nfc-l@cornell.edu/maillist.html 2) http://www.surfbirds.com/birdingmail/Group/NFC-L 3) http://birdingonthe.net/mailinglists/NFCL.html Please submit your observations to eBird: http://ebird.org/content/ebird/ --
