[nfc-l] Maine tonight
After arriving home from one of the last boat trips of the season out to Eastern Egg Rock to see puffins (we saw one) I listened for about 10 minutes at about 10 PM at my home in Gardiner, Maine. Above the din of cricket noise there were nfc at a rate of about 4-6 per minute, mostly warblers, plus a couple of Veery, prob Rose-breasted Grosbeak, Chipping Sparrow. Jeff Wells -- 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 --
[nfc-l] flight calls in se pa
It has been interesting to read what people have been hearing out west. My site is my house surrounded by woods on a low ridge in southeastern PA, where I sit and listen on my deck from about 5:00 a.m. till daylight on most fall mornings, and have for years. (I don't record; for various reasons, none good, that Martha Stewart flower pot set-up I built at one of Bill Evans' workshops never did make it onto the roof.) Except on heavy flight mornings with continuous calling, most calls tend come in about 15-20 minutes close to daylight. Most calls in August have been of Veery (over 250 8/15, 20; 100+ on a few other days). Wood Thrush started 8/15 (15) and have been increasing since. No classic spring peeper Swainson's calls yet; I may be missing some Veery-like calls of these guys. In the last week, more variety, with some calls of Baltimore Oriole, Scarlet Tanager, Rose-br. Grosbeak, Bobolink and my first ever Caspian Tern. As always, unidentified calls, esp. warbler type. Some of the better mornings have been on light W or SSW winds with birds descending through clouds. Rudy Keller Boyertown, PA Berks County -- 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 --
Re: [nfc-l] Your experience with recordings you've made of Gray-cheeked and Bicknell's Thrush
Hi Matt, >From what you described it would be a little tough, but it sounds like a Bicknell's Thrush, peak is a bit low. Without seeing it, based on the peak I would not put it as a positive ID. They generally always start around 3.5 to 4kHz and peak about 5.5 -6kHz, and have a longer less descending trail/tail in their typical call. In our recordings Gray-cheeked almost never get above 4kHz (+/- 0.1kHz) in their peak and the "tail" drops faster. The length of the tail is sometimes longer in Bicknell's, but that is very variable, I think more so than the frequency variation. Generally, the rule of thumb is if it stays between 3-4kHz its a Gray-cheeked, if its totally above 4Khz peaking around 5.5 to 6kHz its a Bicknell's. Where is your recording station located in WV, in Summit Point? Generally, the closer to the coast the more you'll get, but we do get many here. In 04 I think we had many more for some reason. I would expect you to have them there (possibly more than us) as you are a bit east of us. Best, Mike Michael Lanzone Biotechnology and Biomonitoring Lab Supervisor Carnegie Museum of Natural History Powdermill Avian Research Center 1847 Route 381 Rector, PA 15677 724.593.5521 Office mlanz...@gmail.com On Thu, Aug 27, 2009 at 4:12 PM, Matt Orsie wrote: > Hello All, > I was curious as to what you've seen as frequency ranges between > these two species? I've recorded nocturnal calls more off than on since > 2003 and have only seen one or two of what I've called Gray-cheeked > Thrush peak out over 4khz during that time. Most peak out around 4khz > and taper off between 3-3.5khz within 75ms or so. > > I do have one recording that tops off at 4.6khz and takes over 100ms to > wind down. I've wondered for a few years if this could possibly have been > a Bicknell's. > > I know there is overlap but I was still curious to what you have seen as > extremes or averages in your recordings? > > Thanks, > Matt Orsie > Summit Point, WV > > -- > 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 > -- > -- 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 --
RE: [nfc-l] Request from the UK
Dear all, quite interesting to read about flights of rare vargrant such as swainson's thurshes or yellow warblers. Where I do some monitoring I have had rather quiet nights in the last week. Some Black-bellied Plovers (Plusqu), Ringed Plovers (Chahia), Tree pipits (Antpra), Spotted flycatchers (Musstr) and the very first migrating Red-wing (Turili) of the season, and also a number of unid's calls. As you may have guessed already, I am located in Europe a bit North of UK. Now a short question relating to some previous mails. In addition to Raven pro (which is sort of expensive), syrinx (which I cannot get to work) and Tseep-x are there any freeware programs which could be useful for searching calls from large files? regards Harry Harry J Lehto Kaarina, Finland -- 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 --
