Overseeing his part of the world was important on that evening. There was a great deal of calling and general noise making to a mate near by. Raptors, especially the broad-winged type hawks are hard to tell apart from a distance when they are sitting on poles. One way I use to identify these birds is, the very distinct white bib below the beak, followed by confirming they don't have a red tail. This photo was taken on the east side of the Calgary Airport near Silverwings Golf Course.