When raptors spread their wings, they are especially impressive. So when I spotted an American Kestrel ahead of me as I walked down the Bobolink Trail in East Boulder early this afternoon, I took one photograph of it after another while I waited for it to take off. In fact I got off 30 shots before it finally lifted its big wings to fly away.
Click on the picture above to enlarge
Click on the picture above to enlarge
North America’s smallest falcon, the American Kestrel is also the most colorful raptor that I have photographed.
These photographs were a lucky break since I had the camera’s ISO settings cranked up far higher than usual — at 3,200, instead of the 100 to 800 setting that I almost always use. This kestrel was my first photo opportunity this afternoon, and I had forgotten to adjust the ISO setting after an unsuccessful attempt to shot the moon as it sank behind the Flatirons just before sunrise. As a result I was able to shoot the Kestrel at a very fast shutter speed (1/6400th of a second), letting me capture the beating wings without blur. While the field in the background is blurred, I wanted that effect so it wouldn’t detract from the focus on this colorful raptor.





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