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Fwd: Re: [MDOSPREY] Probable Trumpeter Swans [Harford Co.] -2/8/09

From:

Harvey Mudd

Reply-To:

Harvey Mudd

Date:

Thu, 12 Feb 2009 19:18:45 -0500

Forgot to mention: there was no yellow on the bills.
Harvey

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>Date:         Thu, 12 Feb 2009 19:14:44 -0500
>Reply-To:     Harvey Mudd <>
>Sender:       Maryland Birds & Birding <>
>From:         Harvey Mudd <>
>Subject: Re: [MDOSPREY] Probable Trumpeter Swans [Harford Co.] -2/8/09
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>FILETIME=[1454B8C0:01C98D70]
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>>Yesterday, Marion Mudd and I had a chance to study the two immature swans 
>>at Lakeside Business Drive through the telescope as they fed calmly 30-40 
>>yards from us in good light.   There were no other swans present to 
>>provide size comparisons, but the ones in question seemed larger with 
>>proportionally longer bills than those on Tundras.  They were darker 
>>brownish gray than might be expected on juvenile Tundras in early 
>>February.  In both,  the forehead where it met the bill formed  a V-shape 
>>pointing down onto the bill, and, also on both, the area of the black at 
>>the base of the bill encompassed the eye rather than leaving it 
>>isolated.  The latter two features are clearly seen in photographs 1-4 
>>posted by Dave Ziolkowski (see below) and each are characteristic of 
>>Trumpeters rather than Tundas ( see Sibley Guide to Birds, 2000, p. 73 
>>for the former; and Audubon Society Master Guide to Birding, Vol 1, 1983, 
>>p 140 for the latter).  On the basis of all these features our opinion is 
>>that the identification as juvenile coming into first summer 
>>plumageTrumpeters is adequately establishd and use of "probable" or 
>>"possible" Trumpeters is no linger necessary.  As I understand the 
>>situation, Thumpeter Swans are not officially on the Maryland list except 
>>as extirpated. The MDDCRC has a number of Trumpeter sighting reports to 
>>review, but the question of origin has held up decisions.  No wing bands 
>>were seen on the two being discussed, but the question of origin may 
>>still not be definitively decided although some of the populations 
>>established through reintroduction programs  in Ontario or elsewhere are 
>>said to be breeding in the wild and producing increasing numbers of offspring.
>>
>>Harvey Mudd
>>
>>  At 11:18 AM 2/9/2009, you wrote:
>>>Hi everyone,
>>>
>>>I am posting this for Dave Ziolkowski who was not able to
>>>post this yesterday.
>>>
>>>* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
>>>
>>>Dave Larkin discovered two first-winter Trumpeter Swans
>>>today (Sunday) at the Lakeside Business Park in Edgewood,
>>>Harford County.  Dave visits the location every Sunday
>>>so it's evident that the birds arrived sometime between
>>>last Sunday and today.  The birds remained throughout
>>>the day and I visited in the (very windy) afternoon to
>>>take some (shaky) photos and notes.  These can be seen at:
>>><http://djziolkowski.googlepages.com/lakeside-trumpeter-swan>
>>>
>>>Identifying first winter swans is soupy stuff (even
>>>with many great web and print resources out there) so,
>>>although the weight of evidence appears in favor of
>>>Trumpeters here, I welcome well informed comments offline.
>>>
>>>To reach the location from I-95, take the Rt. 24
>>>exit (#77) heading towards Edgewood (i.e., towards the bay).
>>>At the first light turn right onto Edgewood Rd. and
>>>follow this ~0.5 mile before turning right onto Lakeside
>>>Blvd.
>>>
>>>Cheers,
>>>
>>>Dave
>>>
>>>----------------------------
>>>Dave Ziolkowski Jr.
>>>USGS PWRC, Laurel
>>>dziolkowski at usgs dot gov
>>
>>
>>
>>____________________________________
>>
>>S. Harvey Mudd
>>NIMH/DIRP/LMB
>>Building 35, Room 1B1006
>>35 Lincoln Dr.
>>BETHESDA MD 20892
>>tel: 301-496-0681;  fax 301-402-0245
>>email: 
>
>
>
>____________________________________
>
>S. Harvey Mudd
>NIMH/DIRP/LMB
>Building 35, Room 1B1006
>35 Lincoln Dr.
>BETHESDA MD 20892
>tel: 301-496-0681;  fax 301-402-0245
>email: 



____________________________________

S. Harvey Mudd
NIMH/DIRP/LMB
Building 35, Room 1B1006
35 Lincoln Dr.
BETHESDA MD 20892
tel: 301-496-0681;  fax 301-402-0245
email: