Well, not so much called as came fluttering down in the backyard, having, apparently, flown into a branch and stunned itself. I picked it up and checked it's wings and legs for any sign of injury and everything appeared to be in order and it was moving its head around normally so no problems there. I also noted that it was not emaciated, and, at the same time that I was checking it over I also noted that it was not ringed. I then set it down on a low, wide wall where it soon recovered and flew off in the direction of the canal.