An Avian Weathervane

Following a blessedly cool day with intermittent showers, bright sunshine has returned to the Colorado Front Range.  Though a high near 90 degrees F is officially expected, the wind has not yet shifted to the south and its northeasterly direction is producing an upslope flow that has a mild cooling effect along the urban corridor.

As if to emphasize that fact, a Swainson's hawk soared above our Littleton farm this afternoon, stopping at times to hover into the northeast breeze.  Though relatively high in the clear blue sky, this raptor's keen eyesight allows him to pick out prey (small mammals, songbirds, large insects) near the ground, toward which he might make a sudden "stoop."  Today's visitor seemed to be more interested in cavorting overhead, perhaps enjoying the cool respite as much as the summer-weary humans far below.

Then again, Swainson's hawks do not stick around for our crisp autumn weather, often circling toward Argentina by September.  There they spend the Southern summer, not to return to Colorado until late April.