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

2019-10-03 Thread David Irons
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 
mailto:wim.van@gmail.com>> 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)

2019-10-03 Thread David Irons
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 
mailto:wim.van@gmail.com>> 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] How do we know NFCs?

2018-01-31 Thread David Irons
Ted,

I forwarded this directly to Jay.

Dave Irons

Sent from my iPhone

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
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 David Irons
Ted,

I forwarded this directly to Jay.

Dave Irons

Sent from my iPhone

On Jan 31, 2018, at 6:21 AM, Ted Floyd mailto: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 
mailto: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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[nfc-l] Swainson's Thrushes over Eugene, OR

2009-09-13 Thread David Irons

>From 6:00-6:15AM this morning I was hearing 50-80 Swainson's Thrush calls per 
>minute over my home in Eugene, Oregon. We had a minor thunderstorm last night 
>and the skies remain solid overcast. Since it was about dawn, the birds were 
>very low. By 6:30 there were no more calls.

Dave Irons
Content Editor Birdfellow.com 



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RE: [nfc-l] rails calling during migration

2009-09-01 Thread David Irons

Greetings All,

While living in east-central Illinois several years ago, I heard both Virginia 
Rail and Sora call during nocturnal migrations. I heard these birds flying over 
my house, which was located in the small town of Fairmount in the vast corn and 
soybean "desert" of this region. The nearest potential breeding habitat was 
about two miles away.

Dave Irons
Content Editor BirdFellow.com 
Eugene, OR 

> Date: Tue, 1 Sep 2009 13:21:44 +0300
> From: hle...@utu.fi
> Subject: Re: Re:[nfc-l] First recording ... rails on migration
> To: mlanz...@gmail.com
> CC: nfc-l@cornell.edu
> 
> Michael and others, 
> After my last email to the group Magnus Robb inquired 
> about the Spotted Flycatcher (Musstr) I mentioned, so I sent out an inquiry 
> to the Finnish birdnet about what migrants birders had heard. Among others 
> Spotted was "confirmed" although undocumented by recordings - hope that this 
> will be done soon. A couple of other interesting records came into moonlight. 
>  One such is that when Tengmalm's Owls (Aegfun) are on the move they stay in 
> contact at night by calling - you can hear a flock moving by on a wide front. 
> It was not confirmed whether they do this calling during flight of if they 
> sit down to make these autumnal contact calls.
> 
> Now getting to the main point about Rails. I got a note from Mr. Janne Aalto, 
> who lives in Parikkala just next to the Russian border close to a good Rail 
> site Siikalahti. He told me that he had heard three rail species in flight: 
> Water Rail (Ralaqu), Spotted Crake (Porpor) and a Corncrake (Crecre). He was 
> a bit cautious in calling these night migration calls, but he told that the 
> birds were all definitely flying and wondered whether they started their 
> display calls ("songs") when they felt that they were approaching a familiar 
> display site. The Corncrake was apparently further up in the sky. I have 
> personally heard coots (Fulatr) and moorhens (Galchl) call during full 
> migration.
> 
> These sounds quite similar to your yellow rail observation.
> 
> regards
> Harry
> hle...@utu.fi
> Finland
> 
> -
> Harry J Lehto, Ph.D., Adj. Prof.
> Tuorla Observatory
> Department of Physics and Astronomy
> University of Turku
> Väisäläntie 20
> FI-21500 Piikkiö
> FINLAND
> hlehto(a...@sign)utu.fi
> 
> 
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