A single juvenile White-crowned Sparrow made daily visits to our bird feeder beginning around November 12th (that we noticed). Unfortunately, it became obvious that the Sparrow had a broken wing. It gamely hung around for about three weeks and even survived the big November snowstorm. But after November 28th we did not see it again. I suspect it was taken by the local Cooper's Hawk.
(Photographed November 14 & 27, 2014 on lower Chemong Lake, Emily Township, City of Kawartha Lakes, Ontario, Canada)