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.
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