[wisb] Re: Orange-crowned vs. Tennessee Warbler
- From: "Tom Schultz" <trschultz@xxxxxxxxxxxxxx>
- To: "wisbirdn wisbirdn" <wisbirdn@xxxxxxxxxxxxx>
- Date: Wed, 29 Aug 2012 18:11:41 -0500
Thanks, Mike. Actually the WI eBird article that Ryan provided the link to
is pretty good. The only thing I would perhaps emphasize a little more is
the important structural differences between the two species -- particularly
in the relative lengths of the tails.
The article does mention briefly that Orange-crowned has a longer tail than
Tennessee, which is certainly true. Tennessee Warbler has one of the
SHORTEST tails of any warbler, and the projection beyond the white undertail
coverts is noticeably short. The tail feathers of an Orange-crowned show
much more projection.
This feature can often be seen quite readily in warblers, since they are
often overhead and providing many undertail views! I agree with Ryan that
more photos of these two species would be very useful for comparisons.
And, also very important (as Ryan mentioned) is the timing, with
Orange-crowned Warblers being a late warbler, and very rare before
mid-September.
Tom Schultz
Green Lake Co.
-----Original Message-----
From: Mike Ramsden
Sent: Wednesday, August 29, 2012 5:21 PM
To: ryanbrady10@xxxxxxxxxxx ; wisbirdn wisbirdn
Subject: [wisb] Re: Orange-crowned vs. Tennessee Warbler
In addition to the field marks mentioned in the ebird article, the Peterson
Guide to Warblers relies on the primary tip extension and the tail length as
good ways to tell the Tennessee from the Orange Crowned. Tom Schultz might
want to chime in on this. Sometimes the color of the undertail coverts as
well as streaking can depend on angle, distance, light, optics, and wear and
is subjective. I learned that the hard way.
Mike Ramsden
Beloit, WI
> From: ryanbrady10@xxxxxxxxxxx
> To: wisbirdn@xxxxxxxxxxxxx
> Subject: [wisb] Re: Orange-crowned vs. Tennessee Warbler
> Date: Wed, 29 Aug 2012 15:15:11 -0600
>
>
> Forgot to add that this is a great website for fall warbler pics,
> including OCWA and TEWA:
>
> http://www.giffbeaton.com/warblers.htm
>
> Ryan Brady
> Washburn, Bayfield County, WI
> http://www.pbase.com/rbrady
> ----------------------------------------
> > From: ryanbrady10@xxxxxxxxxxx
> > To: wisbirdn@xxxxxxxxxxxxx
> > Subject: Orange-crowned vs. Tennessee Warbler
> > Date: Wed, 29 Aug 2012 14:44:17 -0600
> >
> >
> > Here's an old but timely article from the WI eBird team (specifically
> > authored by Andy P) on separating Orange-crowned and Tennessee Warblers
> > during fall migration. We could probably beef it up a bit with content
> > and images but it will have to do for now. Orange-crowneds are late
> > migrants and extremely rare in the state before at least the second week
> > of September. If you see one before then, do your best to snap a photo!
> >
> > http://ebird.org/content/wi/news/tricky-fall-warblers-orange-crowned-warbler
> >
> > Ryan Brady
> > Washburn, Bayfield County, WI
> > http://www.pbase.com/rbrady ####################
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