Hi Preston and all,
I downloaded the calls you sent. The first one is a “double-up” warbler mostly
likely one in the genus Oreothlypis (Nashville, Tennessee, and Orange-crowned).
I would lean toward Tennessee for this one due to the nice bend in the
spectrogram. When I first looked at the
I have been recording in Ithaca NY for last few days. I am finding an
interesting pattern in number of calls recorded per hour (between 9.00 pm to
5.30 am). My recordings of the calls peak around 3.00 am in the morning. So I
am not sure why that pattern. Whether that is the time when
In Delaware, my calls steadily increase throughout the night, peaking about
an hour and a half before sunrise (4:45-5:00 approximately).
On Tue, Sep 6, 2016 at 11:45 AM, Caitlin Coberly
> Recording in central Michigan, my calls were peaking at about 4:00
Recording in central Michigan, my calls were peaking at about 4:00 AM-right
by the shores of Lake Huron. My guess is that is when they are flying low
and looking to land. I'd have to look at my old data, but I think my inland
recorders (not near woodlots) did not see the same peak. Fall and
Another undergraduate at the time from Bates College named Mike Watson did some
work for his honors thesis using data from three of my recording units run
simultaneously here in Maine all within a few miles of each other.
Attached is one figure showing the nightly variation over three October
Sorry all, it appears I was mistake in my earlier statement. I made an
excel chart of calls for three nights this week which I have attached
below. As you can see, the peak seems to be around 22:00 on all three
nights. However, I only listen live until 23:00, and use automatic
detectors for the
Out here in southwestern Washington State, I have a steady flow of very
vocal Swainson's Thrushes flying over every night. Like others on this
list serve, I've noted that the number of calls increasing dramatically
about an hour or so before dawn. I've often wondered if they are calling
Hi Jeff and all,
Thanks for your feed back. It is getting more interesting! I just looked at
the data of Sep 21 2015 when I recorded over thousand calls. As Jeff mentioned
it peaked around 2 am.
As for Swainsons Thrushes, I have been recording very few calls or no calls at
all, when some
Be lovely to see that correlated with weather patterns, or across geographic
scales. Be fun, of course, to correlate with the radar imagery as well.
[mailto:bounce-120756676-10103...@list.cornell.edu] On Behalf Of
Hi Jerald and all,
Thanks for sharing your monitoring results. I look forward to your next
As for your strange call, it is indeed strange; very high frequency. I
wonder if it is a bird at all. It is almost mouse like.
Carleton, Nova Scotia
NFC-L List Info:
Mail list logo