Strange bird sighted in Queens...

Today, I got a text message indicating that a strange and possible rare bird was sighted in Queens.   I responded with some basic questions asking about plumage, bill color etc.   Subsequently, I grabbed my bins and lens and headed out to the site; my intention, was to get to the location ahead of the mass of birders that were sure to descend on the area once the word got out.

Once I got there I was stumped! It was a strange bird indeed and I could not find any species like it in either of my Sibley's or National Geographic field guides.   In bird terminology, this will have to be listed as a possible accidental unknown exotic species, until someone makes a positive ID.   I did get a photo, which I have decided to post just in case someone can ID this bird...