A modest flight of warblers this morning at Sunset Beach this morning 0645-755 included a bilateral gynandromorph Black-throated Blue Warbler: adult male plumage on the left side of the bird, adult female on the right side. I've never seen such a bird, though I have seen them reported on occasion. The disbelief ("cognitive dissonance") occasioned by such a sight is hard to describe: at first, I thought -- when the female seemed to turn into a male as it turned around -- that two birds must be involved and that I was seeing things. But I watched, incredulous, as the male turned back into a female, and vice-versa, for two minutes before the bird left the little patch of woods (adjacent the picnic shelter), heading north. I was just 20 feet or so from the bird during the observation. Plenty of normal Black-throated Blues around this morning for comparison, and many of the birds perched obligingly before continuing northward. Other birds seen are listed below: Gray-cheeked Thrush 1 Swainson's Thrush 1 Gray Catbird 22 Brown Thrasher 2 vireos - none! House Wren 5 Golden-crowned Kinglet 4 Eastern Phoebe 3 Northern Flicker 5 Blue Jay - none! (after a week with >15,000, what a surprise; but they migrate diurnally, a bit later) Northern Parula 38 American Redstart 20+ Black-throated Green Warbler 14 (3 birds in a single vine tangle, twice) Black-throated Blue Warbler 25+ Tennessee Warbler 2 (I sometimes miss this species in fall here) Blackpoll Warbler 13 Bay-breasted Warbler 1 Magnolia Warbler 2 Prairie Warbler 1 Yellow-rumped (Myrtle) Warbler 2 Palm Warbler (Western) 50+ Palm Warbler (Yellow) 2 unidentified Dendroica 70+ unidentified Oporornis 1 Common Yellowthroat 2 (only!) I was surprised to see no Cape May Warblers in this flight or any sparrows, Winter Wrens, gnatcatchers, Black-and-white Warblers, or vireos, etc. Cape Mays could have been among the streaky warblers seen passing high overhead, but most looked like Blackpolls or Western Palm Warblers. Has anyone been impressed with the lower numbers of Blackburnian Warblers this year? I think the coast, with few westerlies this year, may have just had fewer migrants overall this fall during their window of passage. I learned from Fletcher Smith that a Black-throated Gray Warbler was noted at Fisherman Island 17 September by Deanna Dawson, a specialist in Neotropical migrants. Ned Brinkley Cape Charles, VA You are subscribed to VA-BIRD. To post to this mailing list, simply send email to va-bird@xxxxxxxxxxxxxx To unsubscribe, send email to va-bird-request@xxxxxxxxxxxxx with 'unsubscribe' in the Subject field.