[ I was struck by the fact that the facial disks on this Great Gray Owl appeared asymmetrical in all photos posted here. I then checked Google Images, and found that, amazingly enough, all the images seemed to show that the owl's right disk reaches higher on the head. Knowing that facial disks are supposed to enhance hearing in owls, and that owls have the right and left ears placed at slightly different heights to allow detection of the elevation of a target, I looked further. Lo and behold, the Great Gray Owl is known for having some of the greatest vertical asymmetry in ear location among owls, and the right ear is indeed higher.http://www.sdbonline.org/fly/lewheldquirk/figlegq2.htm N.B.: Ear asymmetry occurs in a third of all owl species. In the great gray owl, the asymmetry is opposite (i.e., right ear higher), and the shift is seen not just in the skin but also in the skull . Bruce Boyer] Bruce added this a day later [ Pictures of Barred Owls posted on the Internet show marked asymmetry of facial disks also:http://rodgerdodger.files.wordpress.com/2008/07/barred-owl.jpghttp://www.nbbd.com/photos/birds1/BarredOwl.jpegSo next time you're viewing an owl, check out the height of its "eyebrows." You are seeing external evidence of a very remarkable anatomic adaptation. Bruce Boyer ]
This next group of images show the owl perch hunting........
These last two images are my favorites from deep within the woods of NH with the Great Gray Owl........ nice day !!!
I hope you enjoy the images and find the info from Bruce to be informative!
All rights reserved images© Peter Manship
P.S. someone asked about equipment and settings: Canon 40d EF 400 f/5.6 . Most of the images of the owl are as they came out of the camera using ACR to convert to Tiff.
Header image settings were ISO 400 1/160 F/6.3 Evaluative metering +3/4 stop , head held and this is about average for all the image that day. I take a test shoot and quickly check my setting by looking at the histogram, make any adjustments I need and then just make images after that. Unless something changes, then I do another test, adjust and shoot. Hope that's helpful!