Date:         Mon, 23 Dec 2002 23:46:35 -0500
Reply-To:     Maryland Birds & Birding <MDOSPREY@HOME.EASE.LSOFT.COM>
Sender:       Maryland Birds & Birding <MDOSPREY@HOME.EASE.LSOFT.COM>
From:         Robert Ringler <ringler@QIS.NET>
Subject:      Re: BC Chickadee & waterfowl, Loch Raven
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Stan,
    I believe banders use wing/tail ratio but I need a bander to answer that question.  Can someone help out here?

Bob

----- Original Message -----
From: Stan Arnold <dy.dx@VERIZON.NET>
To: <MDOSPREY@HOME.EASE.LSOFT.COM>
Sent: Monday, December 23, 2002 9:18 PM
Subject: Re: [MDOSPREY] BC Chickadee & waterfowl, Loch Raven


> Bob,
>
> I also had a similar sighting a couple years ago along the 
> Susquehenna,
down
> from Conowingo, when I was sure I had a Black-capped Chickadee by 
> sight
and
> sound.
>
> What criteria do banders use to confirm the species?  I don't have a 
> copy
of
> Pyle available.  Do they look for specific field marks (greater 
> coverts, secondaries, bib delineation, size, tail length...) or do 
> they have to
judge
> based on a preponderance of evidence (more characteristics of one 
> species
vs
> another).

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