5 October 2013
Posted by Callan Bentley
A long time ago, I posted here an image of an “owlprint” – the pattern of duff left on a pane of window glass when a screech owl smacked into it.
We’ve had a couple of new avian impacts lately out at Fort Bentley…
Here’s a clear mourning dove imprint on the upper level window glass (viewed from below, both inside and outside). No flash in either case…
And here’s an example of what may be a screech owl from the basement door… Or maybe another dove, with its head and wings at a different angle? Both shots outside, looking in, one without flash, one with:
Ouch! Maybe you could try some of these ideas to help keep birds safe around windows: http://www.allaboutbirds.org/Page.aspx?pid=1184
Maybe I already have?
I’m not sure how much more I can do, other than removing my windows or covering them entirely.
Maybe so, and that’s great! The San Francisco Planning Department recently adopted standards for bird-safe buildings. Hopefully as more and more communities realize that practical solutions exist, our options will continue to expand. See http://www.sf-planning.org/index.aspx?page=2506
There’s some new glass on the market that utilizes UV reflection technology so that birds can see the embedded pattern, but people can’t: http://www.ornilux.com/history-research.html
More about what has and hasn’t worked: http://www.flap.org/residential.php
Thanks for being open to help find solutions!