Window strikes are deadly. Research has shown that approx. 50% of all unintentional window strikes either kill on impact, or cause injuries or delayed reflexes that result in deaths.

So while the imprint on the window is impressive, it was probably injurious to the hawk. Since this is the second time that a hawk has hit that window, for the sake of the birds it would be good to put something on the outside of the glass to make the glass barrier visible to birds.

I write a weekly column in the Shoreline Area News, and it just so happens that I wrote about window strikes this week. By many accounts this is the second highest cause of avian deaths--the first being removal of habitat.

Here is the link to this article, with some suggestions how to reduce window strikes, and a link to one of the products.


http://www.shorelineareanews.com/2011/04/for-birds-window-strikes-are-deadly.html?

Hope you enjoy.

My special thanks to the three tweeters who sent me pictures that I used:
Scott Carpenter
Janet Millard
Amy Schillinger


Christine Southwick
N Seattle/ Shoreline
clsouthwick at pugetsoundbirds.org
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

On Sun, 3 Apr 2011, mark girling wrote:

> Date: Sun, 3 Apr 2011 11:57:31 -0700 (PDT)
> From: mark girling <markgirling at yahoo.com>
> To: tweeters at u.washington.edu
> Subject: [Tweeters] green morph pine siskin
>
> Having filled the feeders up saturday I hoped to have some backdoor birding sunday morning.It seems the pine siskins are starting to
> show up.Amongst a flock of 3 a green morph variety stood out.As I had 2 regular siskins a townsend warbler and goldfinches in there
> various states of plummage to all compare from I can quite confidently say I have a a greenmorph pine siskin.I took some pictures
> with a point and shoot camera.Which may help.Also we have on our back sliding door an imprint of a wing in full airbraking .2nd time
> a coopers hawk has hit our glass door but the imprint is pretty cool.
> markgirling at yahoo.com Bellevue{Woodridge}
>
>

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