Yellow-throated Warbler Hybrid – Apr. 22, 2018

Yellow-throated Warbler is an uncommon migrant in Morris and Somerset Counties. The past two days saw an unusual number of reports in the area. In these two counties, Yellow-throated Warbler reports totaling greater than zero is unusual.

Yesterday at Lord Stirling Park, Bernards Township, a Yellow-throated Warbler was observed closely and well-described by Ben Barkley. That is interesting enough in itself.

Today, April 22, a different Yellow-throated Warbler was viewed in the afternoon and photographed by Simon Lane and earlier by Tom Smith which show a possible hybrid between a Yellow-throated Warbler and a Yellow-rumped Warbler.

As always, click on the photos for a larger image.

Yellow-throated Warbler Hybrid, Lord Stirling Park, Apr. 22, 2018 (photo by Simon Lane)

Below is a photo of a classic Yellow-throated Warbler at Colonial Park, Franklin Twp. in 2014. Many of you may remember this individual. Note the solid yellow neck and upper breast and the white abdomen.

Yellow-throated Warbler, Franklin Twp., NJ, Apr. 16, 2014 (photo by Bill Dix).

Below is the Lord Stirling bird today with a necklace where some yellow should be.

Yellow-throated Warbler Hybrid, Lord Stirling Park, Apr. 22, 2018 (photo by Tom Smith)

Yellow-throated Warbler Hybrid, Lord Stirling Park, Apr. 22, 2018 (photo by Tom Smith)

Thickening the plot, note the faint yellow rump patch. Yellow-throated Warblers do not have yellow rump patches.

Yellow-throated Warbler Hybrid, Lord Stirling Park, Apr. 22, 2018 (photo by Tom Smith)

Putting these characteristics together equals a possible, if not probable, Yellow-throated Warbler and Yellow-rumped Warbler hybrid.

mocosocoBirds will attempt to get more information about this hybrid combination.


View local eBird checklists in the mocosocoBirds region via eBird’s Region Explorer. Use the following links:

The eBird Hotspot Primer is here and can also be accessed via the Hotspot menu item on the mocosocoBirds.com website.


The mocosocoBirds Facebook page is located here and also posts timely information not found on the mocosocoBirds web site.

@mocosocoBirds at Twitter is another communications stream. Instant field reports and links of interest are tweeted throughout the day. The latest tweets appear on the sidebar of this page. One can follow mocosocoBirds at Twitter or link to @mocosocoBirds.


Finis


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