[TN-Bird] Female Archilochus Humm.-Help with ID

  • From: "Bates E." <wgpu239@xxxxxxxxx>
  • To: TN-Bird <tn-bird@xxxxxxxxxxxxx>
  • Date: Sun, 18 Oct 2009 15:40:57 -0400

Birders,

I need some help with this one.



The last regular hummingbirds I saw at my feeders here near Norris (Anderson
County) was on Oct. 5.  There were all the regular R-T humms. that had been
coming all summer, absent the mature males.


Then, this past Fri. (Oct.16) a lone female appeared at one of my feeders
and has been there regularly since.



It appears, pretty clearly, to be a mature female *Archilochus.  *It's most
likely a Ruby-Throated, but several things argue for Black-Chinned.


First, even in bright sunlight (today, PTL) the back is a dull green
(nothing like the bright green RTs I saw all summer), and its head is dull
grayish-green.  There?s a pale grayish patch behind the eye.  There is a
pale buff wash on its flanks.  The wings, which end just above the tip of
the tail, are not clearly  ?sharp pointed? or more rounded.
Most-significantly,
it flashes its tail *constantly* as it hovers.



Is Black-Chinned out of the question?  If not, is there any way of making
this ID without the bird in hand?



Thanks.



Bates Estabrooks

Andersonville, Anderson Cty.

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