On Sun, Jul 12, 2026 at 12:00 AM PABIRDS automatic digest system <
<LISTSERV...> wrote:
> There is 1 message totaling 428 lines in this issue.
>
> Topics of the day:
>
> 1. PABIRDS Digest - 6 Jul 2026 to 10 Jul 2026 (#2026-141)
>
> ----------------------------------------------------------------------
>
> Date: Sat, 11 Jul 2026 06:33:04 -0400
> From: Ronald Fleischer <rgfphotography...>
> Subject: Re: PABIRDS Digest - 6 Jul 2026 to 10 Jul 2026 (#2026-141)
>
> Just my 2 cents - you could reach out to the Powdermill Nature Reserve (
> part of the Carnegie Museum) - they have been studying window strikes for
> many years and may be able to help.
> Ron Fleischer
> Cranberry Twp, PA
>
> > On Jul 11, 2026, at 12:00 AM, PABIRDS automatic digest system <
> <LISTSERV...> wrote:
> >
> > There are 5 messages totaling 418 lines in this issue.
> >
> > Topics of the day:
> >
> > 1. Help about window strikes (5)
> >
> > ----------------------------------------------------------------------
> >
> > Date: Fri, 10 Jul 2026 14:38:09 +0000
> > From: jerry Kruth <gkruth...>
> > Subject: Help about window strikes
> >
> > What to do about window strikes?
> > Foolishly (now) we had glass panels installed on the upper deck, and
> we've already experienced several strikes, and at least a fatality due to
> creatures flying into the panel!
> > Had I fathomed this, we'd never had done this, but what to do now?
> > Decals!
> > Does anyone have any suggestions about what kind of decal is most
> effective?
> > We are very stressed about thiis and want to prevent any more accidents
> without destroying entirely the ambiance.
> > Thanks v much for any assistance, and best wishes,
> > Jerry Kruth
> > Pittsburgh
> >
> > ------------------------------
> >
> > Date: Fri, 10 Jul 2026 17:20:11 +0000
> > From: Anne Annibali <anneanni...>
> > Subject: Re: Help about window strikes
> >
> > Jerry,
> >
> > We've had very good results with the UV reflective cling decals on our
> sunroom windows since it was built in 2010. And it's right in the line of
> flight from our front yard to all our bird feeder stations in the back yard.
> >
> > Decals come in a variety of designs and they're not terribly expensive.
> We've experimented with a couple different brands bought through Amazon and
> the less expensive one has been just as effective as the pricier one. We
> chose the leaf-shaped ones to blend in with our wooded property and even
> though they're only semi-translucent, they don't detract from the view at
> all. And the only time any of them ever peeled off was when we needed to
> power-wash the sunroom siding.
> >
> > Two points to be aware of. They do deteriorate eventually and lose some
> of the UV coating so they'll need to be replaced. You'll know when that's
> necessary because you'll start to experience bird strikes again. And
> secondly, the decals aren't very large so you'll likely need to buy more
> than one set to have enough for full coverage.
> >
> > Good luck,
> > Anne Annibali, Mount Gretna Lebanon County
> >
> > ________________________________
> > From: Bird discussion list for Pennsylvania <PABIRDS...>
> on behalf of jerry Kruth <00000005ead0dac6-dmarc-request...>
> > Sent: Friday, July 10, 2026 10:38 AM
> > To: <PABIRDS...> <PABIRDS...>
> > Subject: [PABIRDS] Help about window strikes
> >
> > What to do about window strikes?
> > Foolishly (now) we had glass panels installed on the upper deck, and
> we've already experienced several strikes, and at least a fatality due to
> creatures flying into the panel!
> > Had I fathomed this, we'd never had done this, but what to do now?
> > Decals!
> > Does anyone have any suggestions about what kind of decal is most
> effective?
> > We are very stressed about thiis and want to prevent any more accidents
> without destroying entirely the ambiance.
> > Thanks v much for any assistance, and best wishes,
> > Jerry Kruth
> > Pittsburgh
> >
> > ------------------------------
> >
> > Date: Fri, 10 Jul 2026 14:21:49 -0400
> > From: SCOTT WEIDENSAUL <scottweidensaul...>
> > Subject: Re: Help about window strikes
> >
> > Another option is Feather Friendly (disclaimer, I have no ties to the
> company), which makes UV-reflective dots, about .25” square, that come in
> long tape strips that you apply either vertically or horizontally to a
> window, rub them firmly so the dots adhere, then lift away the clear tape.
> The only glass in our house that didn’t have external screens was our rear
> slider, where we had window strikes. I applied Feather Friendly in a grid
> three (I believe) years ago and have not had a single strike since then.
> >
> > https://featherfriendly.com > >
> > A second option is Collide Escape, which Hawk Mountain has used with
> great success on its large windows at the Acopian Center and the Education
> Building. It’s an external, UV-reflective film that can be custom-made with
> art or designs visible from the outside to people, while from inside the
> window looks much as it would if it had a normal screen. Same disclaimer
> applies. This approach is pricier.
> >
> > https://www.collidescape.org/ > >
> > And finally there are Acopian Bird Savers, which are simply long cords
> hanging vertically in front of a window, moving in the wind and providing a
> visual barrier to a flying bird. They are available for purchase at
> https://www.birdsavers.com but the site also provides DIY instructions
> for making your own out of parachute cord.
> >
> > https://www.birdsavers.com > >
> > So, lots of ways to cut down on window strikes.
> >
> > Scott Weidensaul
> > Milton, NH (formerly Schuylkill Co.)
> >
> >> On Jul 10, 2026, at 1:20 PM, Anne Annibali <anneanni...> wrote:
> >>
> >> Jerry,
> >>
> >> We've had very good results with the UV reflective cling decals on our
> sunroom windows since it was built in 2010. And it's right in the line of
> flight from our front yard to all our bird feeder stations in the back yard.
> >>
> >> Decals come in a variety of designs and they're not terribly
> expensive. We've experimented with a couple different brands bought
> through Amazon and the less expensive one has been just as effective as the
> pricier one. We chose the leaf-shaped ones to blend in with our wooded
> property and even though they're only semi-translucent, they don't detract
> from the view at all. And the only time any of them ever peeled off was
> when we needed to power-wash the sunroom siding.
> >>
> >> Two points to be aware of. They do deteriorate eventually and lose
> some of the UV coating so they'll need to be replaced. You'll know when
> that's necessary because you'll start to experience bird strikes again.
> And secondly, the decals aren't very large so you'll likely need to buy
> more than one set to have enough for full coverage.
> >>
> >> Good luck,
> >> Anne Annibali, Mount Gretna Lebanon County
> >>
> >> ________________________________
> >> From: Bird discussion list for Pennsylvania <PABIRDS...>
> on behalf of jerry Kruth <00000005ead0dac6-dmarc-request...>
> >> Sent: Friday, July 10, 2026 10:38 AM
> >> To: <PABIRDS...> <PABIRDS...>
> >> Subject: [PABIRDS] Help about window strikes
> >>
> >> What to do about window strikes?
> >> Foolishly (now) we had glass panels installed on the upper deck, and
> we've already experienced several strikes, and at least a fatality due to
> creatures flying into the panel!
> >> Had I fathomed this, we'd never had done this, but what to do now?
> >> Decals!
> >> Does anyone have any suggestions about what kind of decal is most
> effective?
> >> We are very stressed about thiis and want to prevent any more accidents
> without destroying entirely the ambiance.
> >> Thanks v much for any assistance, and best wishes,
> >> Jerry Kruth
> >> Pittsburgh
> >
> > ------------------------------
> >
> > Date: Fri, 10 Jul 2026 20:39:23 -0400
> > From: Lauren Fenstermacher <lnfenstermacher...>
> > Subject: Re: Help about window strikes
> >
> >
> > Good evening everyone,
> >
> > American Bird Conservancy has great resources here:
> https://abcbirds.org/strategies/solutions-for-homes/ > >
> > We installed both Collidescapes and Feather Friendly at the Middle Creek
> Wildlife Management Area Visitors Center in Lancaster County pre-Covid and
> both methods are still holding up well and to my knowledge (left working
> there two years ago) have prevented the numerous strikes we use to get
> (around 10-15 a year) on our windows.
> >
> > Staff installed both methods ourselves with the directions provided. The
> Collidescapes was a little more difficult to install as you need to wet the
> windows. It’s a two person job but I have installed Feather Friendly easily
> with the tape on my own. The Collidescapes cuts down on solar radiation and
> as such could save on cooling cost in the summer but is obstructive to view
> out of. I wouldn’t recommend it for large windows where you like to bird
> watch out of. The other options mentioned on the American Bird Conservancy
> website and that Scott mentioned would be better for that like Feather
> Friendly and the Acopian Bird Savers.
> >
> > Lauren Ferreri
> > Auburn, PA
> >
> >> On Jul 10, 2026, at 2:22 PM, SCOTT WEIDENSAUL <
> <000001343b2dd726-dmarc-request...> wrote:
> >> Another option is Feather Friendly (disclaimer, I have no ties to the
> company), which makes UV-reflective dots, about .25” square, that come in
> long tape strips that you apply either vertically or horizontally to a
> window, rub them firmly so the dots adhere, then lift away the clear tape.
> The only glass in our house that didn’t have external screens was our rear
> slider, where we had window strikes. I applied Feather Friendly in a grid
> three (I believe) years ago and have not had a single strike since then.
> >>
> >> https://featherfriendly.com > >>
> >> A second option is Collide Escape, which Hawk Mountain has used with
> great success on its large windows at the Acopian Center and the Education
> Building. It’s an external, UV-reflective film that can be custom-made with
> art or designs visible from the outside to people, while from inside the
> window looks much as it would if it had a normal screen. Same disclaimer
> applies. This approach is pricier.
> >>
> >> https://www.collidescape.org/ > >>
> >> And finally there are Acopian Bird Savers, which are simply long cords
> hanging vertically in front of a window, moving in the wind and providing a
> visual barrier to a flying bird. They are available for purchase at
> https://www.birdsavers.com but the site also provides DIY instructions
> for making your own out of parachute cord.
> >>
> >> https://www.birdsavers.com > >>
> >> So, lots of ways to cut down on window strikes.
> >>
> >> Scott Weidensaul
> >> Milton, NH (formerly Schuylkill Co.)
> >>
> >>>> On Jul 10, 2026, at 1:20 PM, Anne Annibali <anneanni...> wrote:
> >>>
> >>> Jerry,
> >>>
> >>> We've had very good results with the UV reflective cling decals on our
> sunroom windows since it was built in 2010. And it's right in the line of
> flight from our front yard to all our bird feeder stations in the back yard.
> >>>
> >>> Decals come in a variety of designs and they're not terribly
> expensive. We've experimented with a couple different brands bought
> through Amazon and the less expensive one has been just as effective as the
> pricier one. We chose the leaf-shaped ones to blend in with our wooded
> property and even though they're only semi-translucent, they don't detract
> from the view at all. And the only time any of them ever peeled off was
> when we needed to power-wash the sunroom siding.
> >>>
> >>> Two points to be aware of. They do deteriorate eventually and lose
> some of the UV coating so they'll need to be replaced. You'll know when
> that's necessary because you'll start to experience bird strikes again.
> And secondly, the decals aren't very large so you'll likely need to buy
> more than one set to have enough for full coverage.
> >>>
> >>> Good luck,
> >>> Anne Annibali, Mount Gretna Lebanon County
> >>>
> >>> ________________________________
> >>> From: Bird discussion list for Pennsylvania <PABIRDS...>
> on behalf of jerry Kruth <00000005ead0dac6-dmarc-request...>
> >>> Sent: Friday, July 10, 2026 10:38 AM
> >>> To: <PABIRDS...> <PABIRDS...>
> >>> Subject: [PABIRDS] Help about window strikes
> >>>
> >>> What to do about window strikes?
> >>> Foolishly (now) we had glass panels installed on the upper deck, and
> we've already experienced several strikes, and at least a fatality due to
> creatures flying into the panel!
> >>> Had I fathomed this, we'd never had done this, but what to do now?
> >>> Decals!
> >>> Does anyone have any suggestions about what kind of decal is most
> effective?
> >>> We are very stressed about thiis and want to prevent any more
> accidents without destroying entirely the ambiance.
> >>> Thanks v much for any assistance, and best wishes,
> >>> Jerry Kruth
> >>> Pittsburgh
> >
> > ------------------------------
> >
> > Date: Sat, 11 Jul 2026 01:12:18 +0000
> > From: Lee Simpson <fluttering2...>
> > Subject: Re: Help about window strikes
> >
> > I can agree; we had Collidescape which we installed years ago on large
> picture windows and we finally removed it because I was tired of not being
> able to see birds as well as I wanted to. After hours of scraping, washing,
> peeling etc to remove the old Collidescape, we replaced it with Feather
> Friendly dots. The Collidescape removal was a pain, but there is no doubt
> that the product worked extremely well. With the Feather Friendly dots,
> which we installed at our place here in Pa but also on our cabin in Az, you
> can either omit a small area or easily remove a few dots to order to allow
> a photography "window"; I have numerous ones along the window at the
> correct height for me. I did hear one small bird strike the big picture
> window in Az in spite of the dots, but could not locate it afterwards.
> Still, the dots work far better than the parachute cord that had been on
> it. That said, the parachute cord, purchased on the internet and hung at 4"
> intervals the length of the window top to bottom, worked fairly well as
> long as there was some wind to move the cord. My understanding of decals
> per se is that they are not effective; they weren't at my house for sure.
> Whatever is applied must be on the outside of the window. Lee Simpson,
> Berks Co
> > On Friday, July 10, 2026 at 08:54:03 PM EDT, Lauren Fenstermacher <
> <lnfenstermacher...> wrote:
> >
> >
> > Good evening everyone,
> >
> > American Bird Conservancy has great resources here:
> https://abcbirds.org/strategies/solutions-for-homes/ > >
> > We installed both Collidescapes and Feather Friendly at the Middle Creek
> Wildlife Management Area Visitors Center in Lancaster County pre-Covid and
> both methods are still holding up well and to my knowledge (left working
> there two years ago) have prevented the numerous strikes we use to get
> (around 10-15 a year) on our windows.
> >
> > Staff installed both methods ourselves with the directions provided. The
> Collidescapes was a little more difficult to install as you need to wet the
> windows. It’s a two person job but I have installed Feather Friendly easily
> with the tape on my own. The Collidescapes cuts down on solar radiation and
> as such could save on cooling cost in the summer but is obstructive to view
> out of. I wouldn’t recommend it for large windows where you like to bird
> watch out of. The other options mentioned on the American Bird Conservancy
> website and that Scott mentioned would be better for that like Feather
> Friendly and the Acopian Bird Savers.
> >
> > Lauren Ferreri
> > Auburn, PA
> >
> >> On Jul 10, 2026, at 2:22 PM, SCOTT WEIDENSAUL <
> <000001343b2dd726-dmarc-request...> wrote:
> >> Another option is Feather Friendly (disclaimer, I have no ties to the
> company), which makes UV-reflective dots, about .25” square, that come in
> long tape strips that you apply either vertically or horizontally to a
> window, rub them firmly so the dots adhere, then lift away the clear tape.
> The only glass in our house that didn’t have external screens was our rear
> slider, where we had window strikes. I applied Feather Friendly in a grid
> three (I believe) years ago and have not had a single strike since then.
> >>
> >> https://featherfriendly.com > >>
> >> A second option is Collide Escape, which Hawk Mountain has used with
> great success on its large windows at the Acopian Center and the Education
> Building. It’s an external, UV-reflective film that can be custom-made with
> art or designs visible from the outside to people, while from inside the
> window looks much as it would if it had a normal screen. Same disclaimer
> applies. This approach is pricier.
> >>
> >> https://www.collidescape.org/ > >>
> >> And finally there are Acopian Bird Savers, which are simply long cords
> hanging vertically in front of a window, moving in the wind and providing a
> visual barrier to a flying bird. They are available for purchase at
> https://www.birdsavers.com but the site also provides DIY instructions
> for making your own out of parachute cord.
> >>
> >> https://www.birdsavers.com > >>
> >> So, lots of ways to cut down on window strikes.
> >>
> >> Scott Weidensaul
> >> Milton, NH (formerly Schuylkill Co.)
> >>
> >>>> On Jul 10, 2026, at 1:20 PM, Anne Annibali <anneanni...> wrote:
> >>>
> >>> Jerry,
> >>>
> >>> We've had very good results with the UV reflective cling decals on our
> sunroom windows since it was built in 2010. And it's right in the line of
> flight from our front yard to all our bird feeder stations in the back yard.
> >>>
> >>> Decals come in a variety of designs and they're not terribly
> expensive. We've experimented with a couple different brands bought
> through Amazon and the less expensive one has been just as effective as the
> pricier one. We chose the leaf-shaped ones to blend in with our wooded
> property and even though they're only semi-translucent, they don't detract
> from the view at all. And the only time any of them ever peeled off was
> when we needed to power-wash the sunroom siding.
> >>>
> >>> Two points to be aware of. They do deteriorate eventually and lose
> some of the UV coating so they'll need to be replaced. You'll know when
> that's necessary because you'll start to experience bird strikes again.
> And secondly, the decals aren't very large so you'll likely need to buy
> more than one set to have enough for full coverage.
> >>>
> >>> Good luck,
> >>> Anne Annibali, Mount Gretna Lebanon County
> >>>
> >>> ________________________________
> >>> From: Bird discussion list for Pennsylvania <PABIRDS...>
> on behalf of jerry Kruth <00000005ead0dac6-dmarc-request...>
> >>> Sent: Friday, July 10, 2026 10:38 AM
> >>> To: <PABIRDS...> <PABIRDS...>
> >>> Subject: [PABIRDS] Help about window strikes
> >>>
> >>> What to do about window strikes?
> >>> Foolishly (now) we had glass panels installed on the upper deck, and
> we've already experienced several strikes, and at least a fatality due to
> creatures flying into the panel!
> >>> Had I fathomed this, we'd never had done this, but what to do now?
> >>> Decals!
> >>> Does anyone have any suggestions about what kind of decal is most
> effective?
> >>> We are very stressed about thiis and want to prevent any more
> accidents without destroying entirely the ambiance.
> >>> Thanks v much for any assistance, and best wishes,
> >>> Jerry Kruth
> >>> Pittsburgh
> >
> >
> > ------------------------------
> >
> > End of PABIRDS Digest - 6 Jul 2026 to 10 Jul 2026 (#2026-141)
> > *************************************************************
>
> ------------------------------
>
> End of PABIRDS Digest - 10 Jul 2026 to 11 Jul 2026 (#2026-142)
> **************************************************************
>
--
Barbara Malt
Professor Emerita of Psychology and Cognitive Science
Lehigh University
<bcm0...>
