Re: [nfc-l] Canada/Cackling Goose ID request, Solvang, CA (USA)

2019-10-04 Thread Wim van Dam
Yes, that sounds right. (Marshall Iliff emailed me as well and he agrees
with you.)

Where I live (Santa Barbara County, CA) we don't have groups of feral
Greater White-fronted and in the winter we have only a few of them, which
is way I did not consider GWf. It turns out, though, that in fall Santa
Barbara is fly-over county for them as they are making their way to their
wintering ground further south.

Thanks again for helping to resolve this ID.

Wim

On Thu, Oct 3, 2019 at 5:48 PM David Irons  wrote:

> These sound like Greater White-fronteds, perhaps some feral Anser geese
> that are non-native. They are definitely not Cackling Geese.
>
> Dave Irons
> Beaverton, OR
>
> Sent from my iPhone
>
> On Oct 2, 2019, at 6:24 PM, Wim van Dam  wrote:
>
> Last Saturday night (2019-09-28, at about 1AM) I recorded several flocks
> of geese flying over my backyard in Solvang, California (USA). I would
> expect these to be Canada Goose, but they don't sound right for that (too
> high, no honking). So now I'm wondering if these are in fact Cackling
> Goose, which would be interesting given the size of the flock. Here is my
> best recording:
>
> https://www.xeno-canto.org/500506
>
> Does anybody have any suggestions what these are, and why? Probably
> (hopefully) we have to get to the subspecies level to sort this out. The
> original .WAV file is 7MB and I'll be happy to email it to those
> interested.
>
> Thanks
>
> Wim van Dam
> Solvang, CA (USA)
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Re: [nfc-l] Canada/Cackling Goose ID request, Solvang, CA (USA)

2019-10-04 Thread Wim van Dam
Yes, that sounds right. (Marshall Iliff emailed me as well and he agrees
with you.)

Where I live (Santa Barbara County, CA) we don't have groups of feral
Greater White-fronted and in the winter we have only a few of them, which
is way I did not consider GWf. It turns out, though, that in fall Santa
Barbara is fly-over county for them as they are making their way to their
wintering ground further south.

Thanks again for helping to resolve this ID.

Wim

On Thu, Oct 3, 2019 at 5:48 PM David Irons  wrote:

> These sound like Greater White-fronteds, perhaps some feral Anser geese
> that are non-native. They are definitely not Cackling Geese.
>
> Dave Irons
> Beaverton, OR
>
> Sent from my iPhone
>
> On Oct 2, 2019, at 6:24 PM, Wim van Dam  wrote:
>
> Last Saturday night (2019-09-28, at about 1AM) I recorded several flocks
> of geese flying over my backyard in Solvang, California (USA). I would
> expect these to be Canada Goose, but they don't sound right for that (too
> high, no honking). So now I'm wondering if these are in fact Cackling
> Goose, which would be interesting given the size of the flock. Here is my
> best recording:
>
> https://www.xeno-canto.org/500506
>
> Does anybody have any suggestions what these are, and why? Probably
> (hopefully) we have to get to the subspecies level to sort this out. The
> original .WAV file is 7MB and I'll be happy to email it to those
> interested.
>
> Thanks
>
> Wim van Dam
> Solvang, CA (USA)
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[nfc-l] Canada/Cackling Goose ID request, Solvang, CA (USA)

2019-10-02 Thread Wim van Dam
Last Saturday night (2019-09-28, at about 1AM) I recorded several flocks of
geese flying over my backyard in Solvang, California (USA). I would expect
these to be Canada Goose, but they don't sound right for that (too high, no
honking). So now I'm wondering if these are in fact Cackling Goose,
which would be interesting given the size of the flock. Here is my best
recording:

https://www.xeno-canto.org/500506

Does anybody have any suggestions what these are, and why? Probably
(hopefully) we have to get to the subspecies level to sort this out. The
original .WAV file is 7MB and I'll be happy to email it to those
interested.

Thanks

Wim van Dam
Solvang, CA (USA)

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[nfc-l] Canada/Cackling Goose ID request, Solvang, CA (USA)

2019-10-02 Thread Wim van Dam
Last Saturday night (2019-09-28, at about 1AM) I recorded several flocks of
geese flying over my backyard in Solvang, California (USA). I would expect
these to be Canada Goose, but they don't sound right for that (too high, no
honking). So now I'm wondering if these are in fact Cackling Goose,
which would be interesting given the size of the flock. Here is my best
recording:

https://www.xeno-canto.org/500506

Does anybody have any suggestions what these are, and why? Probably
(hopefully) we have to get to the subspecies level to sort this out. The
original .WAV file is 7MB and I'll be happy to email it to those
interested.

Thanks

Wim van Dam
Solvang, CA (USA)

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Re: [nfc-l] noise with OB21c microphone + solid state recording using AC power

2018-09-20 Thread Wim van Dam
Thanks everyone for your suggestions. Chris was right: I needed to ground
my recorder. The buzz stopped as soon as I wired the headphone jack to a
gas pipe in my house. While my Marantz PMD661 is a nice recorder, it
apparently is not designed to be powered by AC while getting its signal
from another AC powered microphone. In the long run I will probably get
myself a proper external battery for the recorder, but for the moment I'll
fix this with some ugly wiring.

Thanks again.

Wim van Dam
Solvang, CA, USA

On Thu, Sep 20, 2018 at 1:08 AM, Magnus Robb  wrote:

> Wim, I don’t know if your Marantz accepts external USB power. If it does
> you could buy a high capacity powerbank (say, 2mAh or more), connecting
> it with a USB cable, and that would probably solve both problems: autonomy
> and noise.
>
> all the best,
>
> Magnus Robb
>
>
> On 20 Sep 2018, at 00:13:39, Wim van Dam  wrote:
>
> [I'm not sure if this newsgroup is still alive, but here goes.]
>
> This week I finally installed my OldBird 21c microphone and I'm having
> some noise issues. In my setting I use a Marantz solid state recorder for
> my recordings. When I power this recorder with its standard AA batteries,
> things are fine but it does not allow me to record for more than a few
> hours. When I use AC power for the recorder instead, a lot of noise shows
> up at 1500Hz, 1620Hz, 1740Hz, 1860Hz, etc. Likely this has to do with the
> fact that the recorder and the OB21c microphone use the same AC outlet.
>
> What is the best solution to this problem?
>
> Thanks
> Wim van Dam
> Solvang, CA, USA
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[nfc-l] noise with OB21c microphone + solid state recording using AC power

2018-09-19 Thread Wim van Dam
[I'm not sure if this newsgroup is still alive, but here goes.]

This week I finally installed my OldBird 21c microphone and I'm having some
noise issues. In my setting I use a Marantz solid state recorder for my
recordings. When I power this recorder with its standard AA batteries,
things are fine but it does not allow me to record for more than a few
hours. When I use AC power for the recorder instead, a lot of noise shows
up at 1500Hz, 1620Hz, 1740Hz, 1860Hz, etc. Likely this has to do with the
fact that the recorder and the OB21c microphone use the same AC outlet.

What is the best solution to this problem?

Thanks
Wim van Dam
Solvang, CA, USA

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[nfc-l] noise with OB21c microphone + solid state recording using AC power

2018-09-19 Thread Wim van Dam
[I'm not sure if this newsgroup is still alive, but here goes.]

This week I finally installed my OldBird 21c microphone and I'm having some
noise issues. In my setting I use a Marantz solid state recorder for my
recordings. When I power this recorder with its standard AA batteries,
things are fine but it does not allow me to record for more than a few
hours. When I use AC power for the recorder instead, a lot of noise shows
up at 1500Hz, 1620Hz, 1740Hz, 1860Hz, etc. Likely this has to do with the
fact that the recorder and the OB21c microphone use the same AC outlet.

What is the best solution to this problem?

Thanks
Wim van Dam
Solvang, CA, USA

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Re: [nfc-l] NFC ID Help

2018-02-13 Thread Wim van Dam
Flipping through Pieplow it looks to me that Nelson's Sparrow might be a
match (relatively monotone, several overtones, with 2nd partial the
loudest). What seems wrong though is that your recoded call lasts 0.28
seconds, which seems long (too long?) for many sparrows.

Wim van Dam
Solvang, CA

On Tue, Feb 13, 2018 at 8:28 AM, Hal Mitchell <halmitch...@gmail.com> wrote:

> Hello NFCers,
>
> I recorded the attached flight call on April 27, 2017 in north
> Mississippi.  It seems long and relatively high and may be a fit for an
> *Ammodramus* spp.  Doesn’t seem to fit the usual single-banded
> Grasshopper sparrows I have found and doesn’t descend like the Le Conte’s.
> Am I way off on something?
>
> Hope all is well,
>
> Hal Mitchell
> Southaven, MS
>
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Re: [nfc-l] NFC ID Help

2018-02-13 Thread Wim van Dam
Flipping through Pieplow it looks to me that Nelson's Sparrow might be a
match (relatively monotone, several overtones, with 2nd partial the
loudest). What seems wrong though is that your recoded call lasts 0.28
seconds, which seems long (too long?) for many sparrows.

Wim van Dam
Solvang, CA

On Tue, Feb 13, 2018 at 8:28 AM, Hal Mitchell  wrote:

> Hello NFCers,
>
> I recorded the attached flight call on April 27, 2017 in north
> Mississippi.  It seems long and relatively high and may be a fit for an
> *Ammodramus* spp.  Doesn’t seem to fit the usual single-banded
> Grasshopper sparrows I have found and doesn’t descend like the Le Conte’s.
> Am I way off on something?
>
> Hope all is well,
>
> Hal Mitchell
> Southaven, MS
>
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Re: [nfc-l] How do we know NFCs?

2018-02-01 Thread Wim van Dam
Thanks for sharing this Jay, that was a great read.

To me, an exciting current development is the application of modern machine
learning tools to get algorithms ("apps") for automatically classifying
NFCs. There is some great work on this from the BirdVox people at NYU +
Cornell; see: https://wp.nyu.edu/birdvox/

Hopefully the development and distribution of such software will encourage
more people to get into the NFCs business.

As a Californian I'm also interested in the current insights about the east
versus west difference in NFCs in the USA.

Wim van Dam
Solvang, CA

On Thu, Feb 1, 2018 at 5:47 PM, Jay Withgott <withg...@comcast.net> wrote:

>
> Hi everyone — and thanks, Ted, for giving me an excuse to dredge up this
> oldie-but-goodie of an article, from the Dec. 2002 issue of Birding.
> Sixteen years ago, yeah, sheeesh — guess that makes us old-timers now, Ted.
>
> Attached is a PDF of the article, and also attached is a low-res copy of
> Julie Zickefoose’s wonderful BB Cuckoo art for the cover of that issue.
>
> Definitely takes me down memory lane.  I’d be interested to hear people’s
> thoughts on what has changed and what has stayed the same since this
> ancient 2002 status report!
>
> Jay Withgott
> Portland, OR
>
>
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>
>
>
>
>
>
>
> On Jan 31, 2018, at 6:21 AM, Ted Floyd <tfl...@aba.org> wrote:
>>
>> Jay Withgott?
>>
>> You out there?
>>
>> Could you post a PDF of your fine article in *Birding*, gasp, 16 years
>> ago? (Feels like yesterday.)
>>
>> Best, --TF
>> ===
>>
>> Ted Floyd
>> Editor, *Birding* magazine
>> Managing Editor, *North American Birds*
>>
>> Website: http://aba.org/birding
>> Twitter: http://twitter.com/BirdingMagazine
>> <https://twitter.com/BirdingMagazine>
>> The ABA Blog: http://blog.aba.org/
>>
>> On Tue, Jan 30, 2018 at 12:50 AM, Wim van Dam <wim.van@gmail.com>
>> wrote:
>>
>>> So as I'm starting to learn about NFCs the obvious question came to
>>> me: how do we know what we currently know?
>>>
>>> Do we typically infer ID features from daytime flight calls where we
>>> can visually verify our IDs? Or are night calls too different from
>>> daytime ones, meaning that we have/had to find other ways of matching
>>> calls with birds (netting, night time visual observations, etc)?
>>>
>>> Imagine somebody trying to get into NFCs in an unexplored part of the
>>> world. How does such a person start?
>>>
>>> Thanks.
>>>
>>> Wim van Dam
>>> Solvang, CA (USA)
>>>
>>
>
>

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Re: [nfc-l] How do we know NFCs?

2018-02-01 Thread Wim van Dam
Thanks for sharing this Jay, that was a great read.

To me, an exciting current development is the application of modern machine
learning tools to get algorithms ("apps") for automatically classifying
NFCs. There is some great work on this from the BirdVox people at NYU +
Cornell; see: https://wp.nyu.edu/birdvox/

Hopefully the development and distribution of such software will encourage
more people to get into the NFCs business.

As a Californian I'm also interested in the current insights about the east
versus west difference in NFCs in the USA.

Wim van Dam
Solvang, CA

On Thu, Feb 1, 2018 at 5:47 PM, Jay Withgott  wrote:

>
> Hi everyone — and thanks, Ted, for giving me an excuse to dredge up this
> oldie-but-goodie of an article, from the Dec. 2002 issue of Birding.
> Sixteen years ago, yeah, sheeesh — guess that makes us old-timers now, Ted.
>
> Attached is a PDF of the article, and also attached is a low-res copy of
> Julie Zickefoose’s wonderful BB Cuckoo art for the cover of that issue.
>
> Definitely takes me down memory lane.  I’d be interested to hear people’s
> thoughts on what has changed and what has stayed the same since this
> ancient 2002 status report!
>
> Jay Withgott
> Portland, OR
>
>
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>
>
>
>
>
>
>
>
> On Jan 31, 2018, at 6:21 AM, Ted Floyd  wrote:
>>
>> Jay Withgott?
>>
>> You out there?
>>
>> Could you post a PDF of your fine article in *Birding*, gasp, 16 years
>> ago? (Feels like yesterday.)
>>
>> Best, --TF
>> ===
>>
>> Ted Floyd
>> Editor, *Birding* magazine
>> Managing Editor, *North American Birds*
>>
>> Website: http://aba.org/birding
>> Twitter: http://twitter.com/BirdingMagazine
>> <https://twitter.com/BirdingMagazine>
>> The ABA Blog: http://blog.aba.org/
>>
>> On Tue, Jan 30, 2018 at 12:50 AM, Wim van Dam 
>> wrote:
>>
>>> So as I'm starting to learn about NFCs the obvious question came to
>>> me: how do we know what we currently know?
>>>
>>> Do we typically infer ID features from daytime flight calls where we
>>> can visually verify our IDs? Or are night calls too different from
>>> daytime ones, meaning that we have/had to find other ways of matching
>>> calls with birds (netting, night time visual observations, etc)?
>>>
>>> Imagine somebody trying to get into NFCs in an unexplored part of the
>>> world. How does such a person start?
>>>
>>> Thanks.
>>>
>>> Wim van Dam
>>> Solvang, CA (USA)
>>>
>>
>
>

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Re: [nfc-l] How do we know NFCs?

2018-01-31 Thread Wim van Dam
Ted: what is the reference of the article you are referring to?

In the meantime I found this article, which addresses the question to
some extend:

"FLIGHT CALLS AND THEIR VALUE FOR FUTURE ORNITHOLOGICAL STUDIES AND
CONSERVATION RESEARCH", Andrew Farnsworth, The Auk 122(3):733-746.
2005

https://doi.org/10.1642/0004-8038(2005)122[0733:FCATVF]2.0.CO;2


Thanks
Wim van Dam
Solvang, CA, USA

On Wed, Jan 31, 2018 at 6:21 AM, Ted Floyd <tfl...@aba.org> wrote:
> Jay Withgott?
>
> You out there?
>
> Could you post a PDF of your fine article in Birding, gasp, 16 years ago?
> (Feels like yesterday.)
>
> Best, --TF
>
>
>
> ===
>
> Ted Floyd
> Editor, Birding magazine
> Managing Editor, North American Birds
>
> Website: http://aba.org/birding
> Twitter: http://twitter.com/BirdingMagazine
> The ABA Blog: http://blog.aba.org/
>
> On Tue, Jan 30, 2018 at 12:50 AM, Wim van Dam <wim.van@gmail.com> wrote:
>>
>> So as I'm starting to learn about NFCs the obvious question came to
>> me: how do we know what we currently know?
>>
>> Do we typically infer ID features from daytime flight calls where we
>> can visually verify our IDs? Or are night calls too different from
>> daytime ones, meaning that we have/had to find other ways of matching
>> calls with birds (netting, night time visual observations, etc)?
>>
>> Imagine somebody trying to get into NFCs in an unexplored part of the
>> world. How does such a person start?
>>
>> Thanks.
>>
>> Wim van Dam
>> Solvang, CA (USA)
>>
>> --
>> NFC-L List Info:
>>
>> Welcome and Basics – http://www.northeastbirding.com/NFC_WELCOME
>> Rules and Information – http://www.northeastbirding.com/NFC_RULES
>> Subscribe, Configuration and Leave –
>> http://www.northeastbirding.com/NFC-L_SubscribeConfigurationLeave.htm
>>
>> Archives:
>> The Mail Archive –
>> http://www.mail-archive.com/nfc-l@cornell.edu/maillist.html
>> Surfbirds – http://www.surfbirds.com/birdingmail/Group/NFC-L
>> Birding.ABA.Org – http://birding.aba.org/maillist/NFC
>>
>> Please submit your observations to eBird! –
>> http://ebird.org/content/ebird/
>> --
>
>
> --
> NFC-L List Info:
> Welcome and Basics
> Rules and Information
> Subscribe, Configuration and Leave
> Archives:
> The Mail Archive
> Surfbirds
> Birding.ABA.Org
> Please submit your observations to eBird!
> --

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Re: [nfc-l] How do we know NFCs?

2018-01-31 Thread Wim van Dam
Ted: what is the reference of the article you are referring to?

In the meantime I found this article, which addresses the question to
some extend:

"FLIGHT CALLS AND THEIR VALUE FOR FUTURE ORNITHOLOGICAL STUDIES AND
CONSERVATION RESEARCH", Andrew Farnsworth, The Auk 122(3):733-746.
2005

https://doi.org/10.1642/0004-8038(2005)122[0733:FCATVF]2.0.CO;2


Thanks
Wim van Dam
Solvang, CA, USA

On Wed, Jan 31, 2018 at 6:21 AM, Ted Floyd  wrote:
> Jay Withgott?
>
> You out there?
>
> Could you post a PDF of your fine article in Birding, gasp, 16 years ago?
> (Feels like yesterday.)
>
> Best, --TF
>
>
>
> ===
>
> Ted Floyd
> Editor, Birding magazine
> Managing Editor, North American Birds
>
> Website: http://aba.org/birding
> Twitter: http://twitter.com/BirdingMagazine
> The ABA Blog: http://blog.aba.org/
>
> On Tue, Jan 30, 2018 at 12:50 AM, Wim van Dam  wrote:
>>
>> So as I'm starting to learn about NFCs the obvious question came to
>> me: how do we know what we currently know?
>>
>> Do we typically infer ID features from daytime flight calls where we
>> can visually verify our IDs? Or are night calls too different from
>> daytime ones, meaning that we have/had to find other ways of matching
>> calls with birds (netting, night time visual observations, etc)?
>>
>> Imagine somebody trying to get into NFCs in an unexplored part of the
>> world. How does such a person start?
>>
>> Thanks.
>>
>> Wim van Dam
>> Solvang, CA (USA)
>>
>> --
>> NFC-L List Info:
>>
>> Welcome and Basics – http://www.northeastbirding.com/NFC_WELCOME
>> Rules and Information – http://www.northeastbirding.com/NFC_RULES
>> Subscribe, Configuration and Leave –
>> http://www.northeastbirding.com/NFC-L_SubscribeConfigurationLeave.htm
>>
>> Archives:
>> The Mail Archive –
>> http://www.mail-archive.com/nfc-l@cornell.edu/maillist.html
>> Surfbirds – http://www.surfbirds.com/birdingmail/Group/NFC-L
>> Birding.ABA.Org – http://birding.aba.org/maillist/NFC
>>
>> Please submit your observations to eBird! –
>> http://ebird.org/content/ebird/
>> --
>
>
> --
> NFC-L List Info:
> Welcome and Basics
> Rules and Information
> Subscribe, Configuration and Leave
> Archives:
> The Mail Archive
> Surfbirds
> Birding.ABA.Org
> Please submit your observations to eBird!
> --

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[nfc-l] How do we know NFCs?

2018-01-29 Thread Wim van Dam
So as I'm starting to learn about NFCs the obvious question came to
me: how do we know what we currently know?

Do we typically infer ID features from daytime flight calls where we
can visually verify our IDs? Or are night calls too different from
daytime ones, meaning that we have/had to find other ways of matching
calls with birds (netting, night time visual observations, etc)?

Imagine somebody trying to get into NFCs in an unexplored part of the
world. How does such a person start?

Thanks.

Wim van Dam
Solvang, CA (USA)

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Please submit your observations to eBird! ��http://ebird.org/content/ebird/
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[nfc-l] How do we know NFCs?

2018-01-29 Thread Wim van Dam
So as I'm starting to learn about NFCs the obvious question came to
me: how do we know what we currently know?

Do we typically infer ID features from daytime flight calls where we
can visually verify our IDs? Or are night calls too different from
daytime ones, meaning that we have/had to find other ways of matching
calls with birds (netting, night time visual observations, etc)?

Imagine somebody trying to get into NFCs in an unexplored part of the
world. How does such a person start?

Thanks.

Wim van Dam
Solvang, CA (USA)

--
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Please submit your observations to eBird! ��http://ebird.org/content/ebird/
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