Summer lightning over Lyons, Colorado.
Young horned lizard, Santa Catalina Mountains, Arizona.
Photo of the day - 9 Mar 2016
Monarch butterfly on lantana.
Photo of the day - 4 Mar 2016
Early afternoon thunderheads forming in the distance. Climbing out of Tokyo's Narita airport bound for San Francisco.
Photo of the day - 1 Mar 2016
Broad-billed Hummingbird near Tucson, AZ.