Wolf Run Studio - Birds
Bill Harrah
Wolf Run Studio
P.O. Box 444
Clifton VA 20124

Phone:
(703) 250-6711
Fax:
(703) 764-9204

 

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DRAWING
INDEX

  AMERICAN KESTREL     BALD EAGLE     BARN OWL     BARRED OWL     EASTERN SCREECH OWL     GREAT HORNED OWL     HARRIS' HAWK     OSPREY     PEREGRINE FALCON     RED-TAILED HAWK     SAW-WHET OWL     TAWNY FROGMOUTHS     CHICKADEE     CARDINAL     HUMMINGBIRD     TUFTED TITMOUSE     NUTHATCH     DOWNY WOODPECKER     RED-BELLIED WOODPECKER     CAROLINA WREN     GREAT EGRETS     PELICAN     CANADA GEESE     MUTE SWAN  
. . . BIRDS OF PREY . . . (Click on an image to see the actual notecard size)
BARN OWL
#BNL-400 Notecards Only
Also available in Notecard Assortment Packs #AST-401 , #AST-402 & #AST-403

A heart shaped set of facial disks distinguishes the barn owl from all other owls. The dark eyes are smaller but no less keen than those of typical owls. Experiments have proven that the barn owl can locate a dead mouse in light one hundred times dimmer than that needed by the human eye. Indeed, the barn owl can capture a live mouse in total darkness. How? The tuftless ears home in on the weak noises made by the scurrying prey.

The barn owl needs every hunting advantage it can get, particularly when raising a typical brood of three to six chicks. The growing chicks, which remain dependent on their parents for about sixteen weeks after hatching, can easily consume their own weight in food every day. Prolific breeders, barn owls commonly hatch two broods each year. The barn owl’s raspy screech is seldom heard outside of the breeding season, which is February through August.

Flitting like a huge moth over a field in the moonlight, this nocturnal hunter often seems very white from below. Plumage on the upper parts appears sandy brown, interspersed with blue-gray and white. The adult barn owl grows to a height of 14 to 20 inches.

As agriculture opened up U.S. forests in the 19th century, the barn owl’s range expanded. The recent reduction of grasslands through urbanization has been accompanied by a reduction in the number of barn owls. Worldwide, eleven species of barn owls favor quiet roosting sites such as tree cavities, caves, church steeples, and, of course, barns.

Text © 1997 Terry White, Drawing © 1997 Bill Harrah

Barn Owl pencil drawing

Copyright Notice
Drawings Copyright © 1992-2010 Bill Harrah, Wolf Run Studio (SM), All Rights Reserved. Wolf Run Studio is a service mark of Bill Harrah and has been in continuous use since 1992. All of the images on this website are in tangible form and are fully copyrighted. Each has an invisible digital identification which is traceable through the Digimarc Corporation. Viewers of the Wolf Run Studio website are allowed to browse and print out images for personal, non-commercial use only. You may not distribute copies of images or image files to anyone else for any reason. Images may not be reproduced or used in any form or any manner, or displayed on any website without the express written consent of Bill Harrah.

Text Copyright © 1992-2010 Terry White or Dianne Harrah. Text on this website is used with permission from the authors. Viewers of the Wolf Run Studio website are allowed to browse and print out text for personal, non-commercial use only. Text may not be reproduced or used in any form or any manner without the express written consent of the authors.

Information Accuracy
The information for the written description of each bird has been carefully researched by the authors and is believed to be accurate. New scientific observations, however, could make some information out-of-date. If you are a professional ornithologist, and have new information that you are willing to share, please contact Dianne Harrah .