The Black Tern challenge

I don't usually even try to take photos of birds in flight - not the easiest thing to do with a point-and-shoot camera, I find. While I was watching something else, I tried a couple of shots of these fast-flying Black Terns, and one or two seemed not too bad. Seemed a shame to delete them, so will hang on to them. Taken at a pond SW of Calgary on 14 July 2013.

en.wikipedia.org/wiki/Black_Tern

www.allaboutbirds.org/guide/Black_Tern/id