Thanks Mike. (I have plans for the windows... this was with the insides done - have to attack the outsides!) I saw another shrike today on campus, which looked much the same. Perhaps it is a common type up here.
I also saw a strange sight at Nanhu (South Lake), about 9 in the morning. There were a group of birds that I was watching almost looking into the sun, and at first I could not figure out what they were. They looked like Black-crowned Night Herons, but the behavior was so weird I thought it must be some other bird. I could not figure out what new bird it could be. When I got around on their other side, they were indeed night herons!
There was a group of about 12 that were just flying circles over the lake (my first thought was they were crows or ravens with such leisurely gliding). They just seemed to fly circles, with no apparent aim. Then some dropped into the water and floated for a while. An individual flew out of sight over some trees, and there was only one I saw land on the ground (none in trees). Mostly they were floating a distance from me, but I didn't see them actually doing anything.... I didn't see any on the edges of the lake.
So, there was no sign of feeding behavior (that I could see) or anything related to breeding activities. Are these a bunch of one year olds just hanging out and having fun or what? (They seemed to have adult markings, and I did see a few white head plumes.) Or is this typical night heron behavior which I haven't seen before: active in day, gliding in circles, and floating in water, (often in small groups)?