Autumn Approacheth

The foliage has been losing its freshness through the month of August, and here and there a yellow leaf shows itself like the first gray hair amidst the locks of a beauty who has seen one season too many…. September is dressing herself in showy dahlias and splendid marigolds and starry zinnias. October, the extravagant sister, has ordered an immense amount of the most gorgeous forest tapestry for her grand reception. ~ Oliver Wendell Holmes

owl

I saw this picture on Bing.com and immediately thought of Autumn. I don’t know why, but maybe it’s because it’s the end of August and Labor Day is this weekend. Suzy and I will be visiting our son and his family, including our new granddaughter. Should be a fun trip.

Owls seem out of this world cool to many of us. Besides the size, this excerpt from Wikipedia might explain some of the appeal.

Owls share an innate ability to fly almost silently and also more slowly in comparison to other birds of prey. Most owls live a mainly nocturnal lifestyle and being able to fly without making any noise gives them a strong advantage over their prey that are listening for any sign of noise in the dark night. A silent, slow flight is not as necessary for diurnal and crepuscular owls given that prey can usually see an owl approaching. While the morphological and biological mechanisms of this silent flight are more or less unknown, the structure of the feather has been heavily studied and accredited to a large portion of why they have this ability.

Owls’ feathers are generally larger than the average birds’ feathers, have fewer radiates, longer pennulum, and achieve smooth edges with different rachis structures. Serrated edges along the owl’s remiges bring the flapping of the wing down to a nearly silent mechanism. Research has shown that the serrations are more likely reducing aerodynamic disturbances, rather than simply reducing noise. The surface of the flight feathers is covered with a velvety structure that absorbs the sound of the wing moving. These unique structures reduce noise frequencies above 2 kHz, making the sound level emitted drop below the typical hearing spectrum of the owl’s usual prey and also within the owl’s own best hearing range. This optimizes the owl’s ability to silently fly in order to capture prey without the prey hearing the owl first as it flies in. It also allows the owl to monitor the sound output from its flight pattern.

Or maybe, it’s just the Harry Potter connect.  Winking smile

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About Gandalfe

Just an itinerant saxophonist trying to find life between the changes. I have retired from the Corps of Engineers and Microsoft. I am an admin on the Woodwind Forum, run the Microsoft Jumpin' Jive Orchestra, and enjoy time with family and friends.
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