[wisb] Re: Red crossbill recordings wanted
- From: Ryan Brady <ryanbrady10@xxxxxxxxxxx>
- To: <wisbirdn@xxxxxxxxxxxxx>
- Date: Wed, 22 Aug 2012 10:32:46 -0600
Great student project! Set up at migration hotspots (e.g. Great Lakes shores)
or travel opportunistically in response to birder reports. Relatively cheap
equipment and send data off for analysis. Time and travel would be most of
effort.
Ryan Brady
Washburn, Bayfield County, WI
http://www.pbase.com/rbrady
> Date: Wed, 22 Aug 2012 09:15:46 -0700
> From: nicka29@xxxxxxxxx
> Subject: [wisb] Red crossbill recordings wanted
> To: wisbirdn@xxxxxxxxxxxxx
>
> I got a note from Matt Young <may6@xxxxxxxxxxx> at the Cornell Laboratory of
> Ornithology asking about Red Crossbill audio recordings, and he wanted me to
> forward this to the list. Please reply directly to him.
>
> I've sent him a couple recordings in the past and he was able to type them
> for me.
> (You can check eBird to see which types they were).
>
> Nick Anich
> Ashland, WI
>
> Recordings for this species
> are sorely needed from the upper Midwest and Great Lakes Region. There’s a
> significant influx of birds currently taking place in Minnesota, Michigan,
> and
> Wisconsin (Kansas too and few in Iowa as well).
>
> If you don't know, the Red Crossbill complex is made up of 10 different
> North American call types. On-going research may prove that some of these
> call types are even separate species. Getting audio-recordings is essential
> to solving the crossbill riddle. When you get a crossbill recording you (or
> I) can run an audiospectrographic analysis to get a signature of the birds
> voice, which then can be used to identify the individual (or flock) to call
> type. These recordings will help us understand their ecology and
> distribution better. Birds can be recorded by video camrecorders with
> audio, expensive recording equipment, and even most cell phones now. I can
> usually make a spectrogram of even pretty bad cell phone recordings. I
> recently was able to easily identify a Type 1 in Tennessee that was recorded
> via cell phone. Pretty amazing.
>
> If you have been finding Red Crossbills currently or recently, please let
> me know. I’d love to run the analysis on anyone’s recordings!
>
> For a summary of information about Red Crossbill forms, see
> http://research.amnh.org/vz/ornithology/crossbills/diagnosis.html
>
> Also look here for differences in some of the crossbill Types:
> http://ebird.org/content/ebird/news/introduction-to%20crossbill-vocalizations
>
> http://madriverbio.com/wildlife/redcrossbill/
>
> Information for your area: As for Types that are most common in the Upper
> Great Lakes, they are Types 2, 3, and 10. Types 3 and 10 (these are both
> smallish-billed with Type 3 being smallest billed in NA and Type 10 being the
> next smallest-billed) are most common in the Pacific Northwest, with Type 3
> most associated with Western Hemlock and Type 10 most associated with Sitka
> spruce. However, Type 10 is also the most frequently occurring Type in the
> Northeast from Adirondacks of NY to northern Maine and likely southern
> Maritimes (often using red and white spruce which isn’t that different than
> Sitka spruce). Type 3 is highly irruptive in the east and often uses spruce
> and Eastern hemlock. Dietary overlap can be great in the east, especially
> when you have very hungry irruptive birds, and it’s not uncommon to find all
> types in spruce or even occasionally white pine. With that said, Robert Payne
> studied crossbills (1987) in the UP Michigan and found a
> small billed bird to be relatively resident in the Marquette County
> Highlands. It would be great to get more information on these birds since
> it’s unknown at this time whether Payne’s work involved Type 3 or Type 10 (I
> hope to get up there this year to get some recordings). As for the
> large-billed Type 2, it is the most widespread type in NA, and can be fairly
> common at times in the east (often in red pine and perhaps even Jack Pine or
> pitch pine), but is most common in areas of Ponderosa pine in the west. Of
> the recent recordings I’ve received so far, I’ve identified Type 3 and 10
> from Wisconsin, and Type 2 in Kansas.
>
> Thanks in advance for any help,
> Matthew A. Young
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