Yes, as it was not too far east of Pittsburgh (PA). Lowell Burket actually did a program on this for the Three Rivers Birding Club of Pittsburgh last fall. The bird, as last I heard, has not been refound this year.
A few weeks ago, a friend from WV sent me a link to an unusual hybrid near Cleveland, a Cerulean/Yellow-throated Warbler blend.
Ryan Tomazin - Bridgeville, PA
From: Vermont Birds <[log in to unmask]> on behalf of R Stewart <[log in to unmask]>
Sent: Monday, August 12, 2019 11:14 PM
To: [log in to unmask] <[log in to unmask]>
Subject: [VTBIRD] Tri-hybrid wood warbler
Did anyone else see this? Ruth Stewart E DorsetA newly discovered
The source for the following is:
David P. L. Toews, Henry M. Streby, Lowell Burket, Scott A. Taylor (2018). *A
wood-warbler produced through both interspecific and intergeneric
hybridization*, *Biology Letters*, published online on 7 November 2018
before print | doi:10.1098/rsbl.2018.0557
an exceedingly astute Pennsylvania birder came upon a bird that appeared so
unusual to his keen eye that he brought it to the prompt attention of the
Cornell Department of Ornithology. This led to the temporary capture of the
bird in a mist net and subsequent DNA testing that revealed an astonishing
result. This bird was in fact the offspring of a Chestnut-sided Warbler
a Brewster’s Warbler <http://brewster/> – which is itself a hybrid between
a Golden-winged Warbler
a Blue-winged Warbler.
“tri-hybrid” is a first. It has never been documented before. The amazing
new hybrid has been dubbed “Burket’s” Warbler after the deserving gentleman
who discovered it. The thumbnail is from the cited article;
<http://www.birdspix.com/uncategorized/burkets-warbler> it is not my own
and I take no credit for it.