No. But accidentals and vagrants are of course one of the great things about birding that keep us grabbing our binos to head into the field. It is what we always hope in the back of our mind is lurking among the regulars. They say a good birder can expect to discover one every five years. Coasts and islands get more A and Vs so our numbers are higher here in Maine.
What compels a SW bird to come NE? Perhaps a glitch in their navigation system where instead of going south they go north? For BTSP only the northern most birds migrate south to the desert. So it could be a CO bird that "took a wrong turn". Anyway it's a great question and a super sighting!
As an aside, I just returned home from my annual trip to AZ and Sonora Mexico where literally one of the last birds I saw was flocks of BTSP. They responded VERY well to playbacks and brought with them many other SW birds.
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