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Re: Glass collisions- was: Thrush

From:

Wendy O

Reply-To:

Wendy O

Date:

Sun, 10 Oct 2010 20:49:01 -0400

Rick

A reference link was provided below.  The title of the presentation is: 
AVIAN MORTALITY AT WINDOWS: THE SECOND LARGEST
HUMAN SOURCE OF BIRD MORTALITY ON EARTH.  By Dr. Daniel Klem.

Here is the link again for your reference:
http://www.pwrc.usgs.gov/pif/pubs/McAllenProc/articles/PIF09_Anthropogenic%20Impacts/Klem_PIF09.pdf

Here is another link from a David Sibley Blog.
http://www.sibleyguides.com/conservation/causes-of-bird-mortality/

Wendy
----- Original Message ----- 
From: "Warblerick" <>
To: <>
Sent: Sunday, October 10, 2010 8:24 PM
Subject: Re: [MDOSPREY] Glass collisions- was: Thrush


> collisions with glass is the 2nd biggest killer of birds in the world 
> after habitat loss
>
> Wendy,
> Could you please provide a source for this fact. I would think cats take 
> far more birds than window strikes.
>
> Thanks,
> Rick Sussman
> Woodbine,MD
>
>
>
>
>
>
> -----Original Message-----
> From: Wendy O <>
> To: 
> Sent: Sun, Oct 10, 2010 6:25 pm
> Subject: Re: [MDOSPREY] Glass collisions- was: Thrush
>
>
> In regards to bird collisions with glass or plexiglass-
>
> If your windows are killing or injuring (many of the ones that fly away 
> may not really be OK) birds with improperly treated or untreated windows, 
> see below:
>
> In order for stickers to be effective you must have no more than 2" of 
> space vertically and 4" horizontally to eliminate bird collisions. One 
> sticker (or even many on a large window) does not work, as Gail mentioned 
> below. If you want to treat your windows and want a template that will 
> help you ensure you follow this pattern, email me offline and I will send 
> you one with instructions on how to treat the glass. We used this 2" x 4" 
> technique on our large (6' x 6' approx) picture window and it has 
> completely eliminated strikes. Putting the stickers up took a while but it 
> was worth it considering collisions with glass is the 2nd biggest killer 
> of birds in the world after habitat loss. 
> http://www.pwrc.usgs.gov/pif/pubs/McAllenProc/articles/PIF09_Anthropogenic%20Impacts/Klem_PIF09.pdf
>
> Here are some other useful products/suggestions/information sources:
> http://www.birdsavers.com/
> http://www.abcbirds.org/abcprograms/policy/collisions/pdf/collisions_flyer.pdf
> https://www.abcbirds.org/birdconservationalliance/campaigns/collisions/Collision_info.pdf
>
> If you are considering new windows or a sunroom, or know anyone who is, 
> here is some good news:
>
> Bird-friendlier glass is now available in the U.S. - Check the distributor 
> websites below for more details or to inquire about the product, its 
> effectiveness, etc. An interesting article on the product here: 
> http://www.asknature.org/product/077e9d44e8e12f039458729f8de1ada9
>
> Distributors
>
> http://www.roeder-wd.com/ Until June 30, 2011 Roeder Windows & Doors will 
> offer its products with integrated ORNILUX Bird Protection Glass without 
> any
> up-charge.
>
> If you're looking for a sunroom or a wall of glass (don't do it unless you 
> get a pattern on the glass or get treated glass), here is an option:
> http://www.nanawall.com/Learn/BirdProtection.aspx
>
> Another way you can help out is by volunteering with local monitoring 
> groups that are collecting data on this issue. Volunteers in Baltimore 
> have found approx 800 birds downtown during monitoring in Spring and Fall 
> migration. Species we've found include Clapper rail, Sora, Connecticut 
> warbler, Black-throated green warbler, Virginia rail, Yellow-bellied 
> flycatcher, Lincoln's sparrow, Ruby-throated hummingbird, just to name a 
> few. If anyone wants info on volunteering for either DC or Baltimore, 
> email me offline and I can put you in touch with the appropriate folks.
>
> Wendy
> Baltimore, MD
>
> ----- Original Message ----- From: "Gail Mackiernan" 
> <>
> To: <>
> Sent: Sunday, October 10, 2010 6:28 AM
> Subject: [MDOSPREY] Glass collisions- was: Thrush
>
>> Unfortunately hawk silhouettes and other rather widely-spaced items 
>> placed
>> on glass windows have been found only marginally effective in preventing
>> bird strikes, although they probably help. I recently purchased some
>> ultraviolet sticky patches which birds can see (but I can't) -- however > 
>> they
>> have the same down-side in that they are widely spaced. I keep the blinds 
>>  > on
>> our sun porch drawn (but with slats open) and this also helps but 
>> wondered
>> if anyone had any other suggestions.
>>
>> I know that some have suggested drawing closely-spaced vertical lines on 
>>  > the
>> glass with a yellow highlighter (which again, birds see in the UV but are
>> almost invisible to us). Has anyone tried this?
>>
>> Other thoughts?
>>
>> Gail Mackiernan
>> Colesville, MD
>>
>> on 10/09/2010 9:37 PM, sharon schwemmer at  wrote:
>>
>>> Alas,
>>>
>>> My son came home around 5PM today to find a GREY-CHEEKED THRUSH dead on 
>>>  >> the
>>> deck with pokeberry juice dripping from its beak. It had an unfortunate 
>>>  >> run
>>> in with the sliding door, which I might add, has several hawk 
>>> silhouettes
>>> all over it. :(
>>>
>>>
>>>
>>> Sharon Schwemmer
>>> Hampstead, MD
>>> swschwemmer at verizon dot net
>
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