Love these little guys

Yesterday, 4 June 2015, was a dry day, though a thunderstorm was forecast. After grey skies and rain the previous couple of days, I felt like going for a drive. Started at a wetland in SW Calgary, where I saw the usual Lesser Scaup and Redheads. The male Redhead did not like any of the other ducks around him and would chase away each one in turn. Quite the bully! Also managed to get a few more shots of a Common Grackle, though they move fast and seemingly constantly.

From there, I drove some of my usual backroads SW of the city. The clouds were building up quite dramatically, and I stopped at one wetland where they were reflected quite beautifully. I didn't see all that many birds, but was content to get a few chances to photograph a pair of Mountain Bluebirds, Tree Swallows, an Eastern Kingbird, and a Savannah Sparrow. No Wilson's Snipe this time, though I thought I had one on a distant fence post. Turned out to be a Mourning Dove - only the second time I've ever seen one on a fence post. Also saw a Swainson's Hawk which flew and landed on a high power pole near where the Bluebirds and Tree Swallows were nesting. The Tree Swallows, in true fashion, were causing the Bluebirds enough stress by flying and landing just a foot or two away from the Bluebirds' nesting box. The male did such a great job of chasing away its rather beautiful, iridescent neighbours - which I also enjoy photographing. So, a short trip, but one that I always enjoy, especially each spring.

In Bluebirds, the blue colour is produced by the structure of the feather - there is no blue pigment. "Tiny air pockets in the barbs of feathers can scatter incoming light, resulting in a specific, non-iridescent color. Blue colors in feathers are almost always produced in this manner. Examples include the blue feathers of Bluebirds, Indigo Buntings, Blue Jay's and Steller's Jays."

www.allaboutbirds.org/guide/Mountain_Bluebird/id

www.jstor.org/discover/pgs/index?id=10.2307/4077277&i...