Date: 8/14/25 12:28 pm
From: <badgerboy...>
Subject: Re: Yellow-rumped x Black-throated Blue hybrid at Hilton Head, SC
Not being very experienced with hybrids, I just wondered, after viewing
the excellent photos on the CBC photo gallery, whether this might just
be a full blooded Black-throated Blue Warbler with some male and some
female plumage characteristics? The pocket handkerchief is shaped like a
typical female BTBW's, the female BTBW has a fairly well defined
supercilium like this bird, and otherwise it looks like a male BTBW that
is missing some of its black on the throat and sides. Otherwise the
brown smudges on the sides just below the wing remind me of a
chestnut-sided. Like I said just asking and please refrain from abusive
or sarcastic remarks-- I already know I'm a block-headed Irishman.

Guy (McGrane, Boone NC)

On 8/13/2025 12:29 PM, Harry LeGrand (via carolinabirds Mailing List) wrote:
> Thanks, Jack and Kay (Grinnell).  NOW we are getting somewhere!   So,
> Jack has pointed out to us two eBird checklists that show the bird was
> reported on 5 February by Andy Jones and Bob Speare, and the earlier
> and more significant one on 2 February by the photographer, Mary Alice
> Tartler.  As Kay has sent me her email address, I will send a message
> to Mary Alice (and Kay), hoping that she will post several of her
> photos to the eBird report.  She already has several photos of a few
> Ruby-throated Hummingbirds on the eBird list:
>
> eBird Checklist - 2 Feb 2025 - Honey Locust Circle - 19 species (+2
> other taxa) <https://ebird.org/checklist/S211892393>
>
> and thus it seems hopeful that she can post photos on this eBird list,
> for permanent documentation.  And, I will encourage her to add details
> in "new world warbler sp.", to indicate that the bird has been
> determined by experts to be a hybrid between Black-throated Blue
> Warbler and Yellow-rumped Warbler.  Yes, the second eBird list says that:
>
> eBird Checklist - 5 Feb 2025 - Honey Locust Circle (PRIVATE) - 23
> species (+1 other taxa) <https://ebird.org/checklist/S212105216>
>
> but without a description or a photograph, there is no documentation
> for such a unique record.
>
> Harry LeGrand
>
> On Wed, Aug 13, 2025 at 12:08 PM <k.grinnell...>
> <k.grinnell...> wrote:
>
> Mary Alice and Harry,
> I'm introducing you via this email.
> MA, see email below.
> Harry, Mary Alice is the birder who sighted this bird, and I
> believe she is the best person to answer your questions.
> Best Regards,
> Kay Grinnell
> (President, Hilton Head Audubon)
>
>
> Kay Grinnell
> <k.grinnell...>
> 10 Pelican Watch Court
> Hilton Head Island SC 29926
> 843 597-3633 cell
>
>
> ----- Forwarded Message -----
> *From:* Harry LeGrand" (via carolinabirds Mailing List)
> <carolinabirds...>
> *To:* Will Cook <cwcook...>; Harry LeGrand
> <hlegrandjr...>
> *Cc:* "<carolinabirds...>" <carolinabirds...>
> *Sent:* Wednesday, August 13, 2025 at 11:57:06 AM EDT
> *Subject:* Re: article about Yellow-rumped x Black-throated Blue
> hybrid at Hilton Head, SC
>
> Will,
>
> Thanks for bringing up this scientifically interesting
> bird/record.  I'm currently working (i.e., struggling) on the
> Summer Briefs for _The Chat,_ but I can always include
> out-of-season records like this, so that it will get into printed
> literature.  It has now been added to my draft, which right now is
> just into the waterfowl.
>
> I do see the observer, the "species", and the location, but the
> date right now for me is just "winter 2024-25".  I can cite a
> color photo in The Island Packet, which appears to be the Hilton
> Head Island newsletter/newspaper.  However, in a few days I
> suspect that most of us will be unable to access this report.
>
> If anyone reading this can provide a particular DAY, that would be
> excellent.  And, also, any other news source/outlet would be
> helpful, as this is too significant to just appear one time only
> in a town's newsletter/newspaper, never to be heard from again.
>
> Harry LeGrand
> Briefs for the Files editor
>
> On Wed, Aug 13, 2025 at 11:23 AM Will Cook
> <cwcook...> wrote:
>
> This bird was observed last winter, but the article is recent.
>
> https://www.islandpacket.com/news/local/environment/article311621106.html
>
> It doesn't appear to have been ebirded as far as I can tell.
>
> --
> Will Cook - Durham, NC
> http://www.carolinanature.com/ <http://www.carolinanature.com/>
>

 
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