[TN-Bird] Window strike article

From: JGIOCOMO@xxxxxxx
To: tn-bird@xxxxxxxxxxxxx
Date: Wed, 15 Sep 2004 10:09:55 -0400
Dan Klem's most recent research on ways to reduce the incidence of bird
collisions with window glass was written up in the Random Samples
section of the  10 September 2004 issue of SCIENCE:

Crashed dove imprint.

Every year, ornithologists say [,] many millions of birds smack into
North American windows, making glass a major player in feathered
fatalities. But biologist Daniel Klem Jr. of Muhlenberg College in
Allentown, Pennsylvania, says he's found a way to tilt the odds in the
birds' favor. In this month's Wilson Bulletin, Klem and colleagues
report that tilting windows toward the ground, so that they reflect
earth and not sky, can dramatically decrease bird strikes.

Klem's group placed six windows along a forest edge near Allentown,
randomly adjusting them to vertical or angled downward by 20º or 40º.
Over 4 months there were 53 strikes, 12 fatal. Nearly 60% of the birds
hit the vertical windows, but only 15% hit the 40º-angle panes.

Although tilted panes might not take suburbia by storm, Sandy Isenstadt
of Yale University School of Architecture predicts that some
architects--particularly "deconstructivists" who reject traditional
forms--will now have a "strong practical justification for [their]
aesthetics of fragmentation."




Fowarded by Jim Giocomo, Knoxville

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[TN-Bird] Window strike article

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