Thank you everyone for your help, it does appear that this matches closest to Greater Yellowlegs (on Stokes). The sonograms are pretty close to Stokes' Greater Yellowlegs too.
I just noticed that I am losing strength of nfc's with my current workflow. My recorder records WMA files (this is Microsoft I think)....but it is an Olympus recorder. Then I convert the file into WAV. (This doesn't cause a loss of quality, but the file gets 6-7x larger). Then to use Raven Lite, I have to make the file <1 minute long. So I cut and paste the recording of interest into another Audacity file of less than 1 minute in length. I export it as WAV. Then when I open the WAV in Raven Lite it appears to lose strength of nfc's. This is a problem since Raven Lite is really nice for viewing sonograms. Any suggestions on a better workflow? It's really pretty fun to have a nice minute section with 5-10 calls to try and figure out. Sincerely, Andrew On Tue, Sep 15, 2009 at 11:37 AM, Chris Tessaglia-Hymes <c...@cornell.edu> wrote: > Hi Andrew and others, > > I listened to your sound clip just now. I concur with others that this is a > Greater Yellowlegs calling. > > What makes it very difficult to absorb and separate out the call of interest > from the background noise is the duration of the recording. Ideally, a > buffer of at least 1 or 2 seconds preceding and following the target sound > of interest will allow a person's brain to better extract the call from the > noise. Also, although I use Raven Pro (1.4 beta), I think that Raven Lite > should also allow for viewing of *.aif and *.mp3 sounds. The size of a file > that can be opened in Raven Lite is limited, though. But, for a tiny clip, > Raven Lite should work for you. Raven Lite is a free product > (http://www.birds.cornell.edu/brp/raven/RavenOverview.html) which is > stripped of all the bells and whistles in Raven Pro. > > I used Raven Pro to copy some of the noise and paste it in front of and > after the call in order to make the call a little easier to hear. I also > deleted the white noise following the end of the clip. You've got to turn > your volume most of the way up. Anyway, it is the typical three-noted > "deer-deer-deer" of Greater Yellowlegs. Lesser Yellowlegs is usually single > or double "deers". I don't know that I've ever noticed Lesser giving more > than two "deers" in a row. Also, to my ears, the quality for Lesser > Yellowlegs is a little different, not as full as Greater Yellowlegs and is > sharper. > > For those interested, I've attached the modified sound file in the hope that > it is easier for people to hear the call. > > Sincerely, > Chris T-H > > Andrew Albright wrote: > > Recorded Sunday am at 4:30am about 3-4 miles from Delaware Seashore. > 2 miles from definite Clapper Rail habitat, Black Rail possible but > very very rare in southern Delaware. > > I have a very basic setup (no amplification) with a parabola pointed > straight up in the air. > > It really sounds exactly like a cross between an American Goldfinch > and a Black Rail to me, which is obviously an awfully odd combination. > I listened to all the shorebirds and yellowlegs also seems remotely > possible. I have no idea if any of those species mentioned give > nocturnal night calls. > > Any help would be appreciated and apologies, it isn't really a great > recording. > > Sincerely, > Andrew Albright > > -- > NFC-L List Info: > http://www.NortheastBirding.com/NFC_WELCOME > http://www.NortheastBirding.com/NFC_RULES > > http://www.mail-archive.com/nfc-l@cornell.edu/maillist.html > -- > > -- > Chris Tessaglia-Hymes > Listowner, NFC-L > Ithaca, New York > c...@cornell.edu > http://www.NortheastBirding.com/NFC_WELCOME > http://www.NortheastBirding.com/NFC_RULES -- NFC-L List Info: http://www.NortheastBirding.com/NFC_WELCOME http://www.NortheastBirding.com/NFC_RULES Archives: 1) http://www.mail-archive.com/nfc-l@cornell.edu/maillist.html 2) http://birdingonthe.net/mailinglists/NFCL.html 3) http://www.surfbirds.com/birdingmail/Group/NFC-L Please submit your observations to eBird: http://ebird.org/content/ebird/ --
