update: I did a little research and birds will avoid verticcal lines. I got vertical blinds and no more flying into the windows. But I still want people to have more compassion!! LOL All these negative comments about the poor birds! I am looking to prevent it, I"ve had them flying into my big front window since I got new windows. I don't want the BIRDS to be HURT! C'mon people, these are innocent animals with families, etc. Have some compassion! Bird "nuisance", hmm...we share the planet with them.

This is fantastic!! Thank you so much! It was breaking my heart to hear the little wren smack off my window all day. My cats are sad now though lol

I tried this after watching your video about 5 weeks ago and have not had any birds hit the window since , thank you so much !!!!!!

Thank you so much! I'm in Australia and we have a peewee attacking his reflection on all the windows. He lands on the windowsill to do it, so he doesn't hurt himself, but Mum's a little tired of being woken every morning by the taps on her bedroom window. I’ve looked into UV decals, but reviews are mixed. The bird strike film is ridiculously expensive here and mostly needs to be imported from the States with big postage rates. The scarcity of Aussie bird films is crazy, when you consider Aussie birds are famously aggressive. I was primarily concerned with peewee proofing Mum's bedroom window, but after taking your comments on board about the time and energy birds waste fighting a perceived threat we put there, I'll do the other windows he attacks, too.

this is so nice! i have been hurting from this noise me and my sis bella i have been praying to god for it to come alive.Today a bird hit my window, it was so loud it hurt so bad. but it sadly passed away so yeah.

I did some research, using para cord & stick on velcro , measure window width & length, cut the cords accordingly to measurements. Hang on the "outside" of the window from the top using the velcro. The slightest breeze will even make them move & looks pretty cool, but the vertical hanging strips spaced 4 inches apart keeps birds from hitting the window, I had to do something because the birds hit my picture window with such force, they were breaking their own necks. This one place sells them if your unable to make your own, just needs window measurements.

Very interesting. I sometimes have larger birds hitting my many sunroom windows. I've taped black paper cutouts of hawk shapes, which was effective. Taped long orange streamers across the windows, also effective. The yellow marker idea seems to be effective also. I'll pass it along to a friend who has swallows nesting in the overhang above her front windows. (She puts plastic wrap on her sills...)

Yep, just yesterday I saw a female Cardinal repeatedly flying into our picture window. I lined up a bunch of CD s💿 on the inside of the window. And on the outside I put several whirly gigs and that seemed to work.

I have had a cardinal attacking the window in my office for the past few weeks. I stumbled across this video. Cleaned the windows, let them dry and then ran the highlighter up/down and across at 2-4" spacing. Absolutely no difference whatsoever, the bird continues to bash itself into the window. Einstein said insanity is demonstrated by trying something over and over again and expecting different results. If that's the case, this bird is definitely insane, and since I am pretty sure I am not, I will not be putting highlighter marks on any other windows!

There was a Kamikaze Robin that kept crashing into my living room window over and over…. He’s got to have a big headache doing that. Bird websites say he is a male Robin attacking his own reflection in the glass. He thinks it's a competing male Robin for Spring nesting territory. It's a major noise distraction when I am on my computer. Walmart to the rescue! I hung two empty plastic Walmart bags outside above the window. They blow about in the wind. The stupid Robin can't stand them! So far he is gone! I will remove the bags after nesting season. :) Walmart bags are best!

Thank you!!!! I'm going to do this in conjunction with the uv bird decals. I live in the city and only on the third floor, but in two years about 5 birds have flown in to our windows. If they didn't die they were knocked out for 15 minutes until they could fly away. That's not including the other tenants. It breaks my heart to see birds on the ground outside. I'm going to pass this info on to the other tenants too. Very informative video!

The hummingbirds are my morning alarm. Thank you for this. Much appreciated!

two issues. one is bird strikes. perfect example are windows on each side of a corner. If from the outside a bird can see thru one window and out the other, it can cause a bird strike because birds don't understand windows. Need blinds on one window so from the outside a bird can't see a visible path. Can also be caused by windows parallel to each other on opposite sides of the house (front window, back patio sliding glass door). Make sure from the outside, there's no way to see thru two windows. Window tint can help for strikes, but not necessarily tapping (reflective tint definitely won't help). The second is bird tapping. The bird sees competition for nesting. This is mostly during nesting season, late winter to fall. If you can see your reflection in the window, so can the bird. The highlighter may not work, possibly if you use small swirly circle to break up the pattern. Patterned gift paper can be put up on windows of lesser used rooms, this breaks up the visual so it's hard for a bird to see its reflection. Gift paper instantly stopped bluebirds from attacking their reflection... .it was getting to the point I was worried the bluebirds would get exhausted or not have enough energy to lay eggs in the nest boxes. First time in 10 years they have done this. A more aesthetic permanent solution would to be install screens on the *entire* window, this will break up the visual so they can't see themselves. During winter you shouldn't be seeing any tapping, since it's not mating season, and some species of "bird flock together" as there is no longer any need for nest competition.

I have a male cardinal that has been here about a week and he is relentless. we live on the mountain and this place was vacant for couple years. Not sure if he has been here before. He looks young. Well, yes soon as the sun comes up he starts although he has toned it down a bit. I've tried it all. i will try making the grid but he already moves to other windows when I cover them and if there is a peep hole in the covering, he will come to it and peck. he also sings when i play guitar on the porch....that part is cool. :)

I have been struggling with this for a long time. Will try your method. Thanks

I saw on another video to use a white paint marker to draw VERTICAL lines every 4 inches on the OUTSIDE of your windows. Looks like it works really well. Don't worry, the paint marker scrapes off easily with a straight edge, like a credit card, but stays on for a long time so you don't have to keep reapplying it. I'm going to try it, because it's so sad when they hit the window. We have the decals on our windows now, and they definitely help, but sometimes they don't.

After weeks of being driven crazy by two stupid birds constantly attacking some of my windows (they had it in for some particular ones) I stumbled upon a simple solution: cut out three images from a cat calendar and stuck on them on the affected ones. They have never come back.

There’s special crayons to use on windows made out of wax. Used to draw holiday scenes by children. Totally rubs off with a wipe from a dry cloth. Try those on outside side of window. Remember DON’T use a regular crayon. Or get custom screens made.

After watching this, I firmly believe you are a wonderful person! 👏👏 You happen to have any advice for how to keep urban birds such as pidgins, or the black Acridotheres tristis with those yellow beaks, from sitting on the window stills, making very loud chirps and imitation noises? (they sound like toy-futuristic-machine-guns I swear! Pew pew pew. It was hilarious until it became a nuisance) They also peck at the window glass, but the persistent noises are the worst thing about it. Not a nice way to wake up. I miss songbirds so badly 😅 P.S. The only obvious methods I see in stores around here seem like they would hurt the birds, and I'm not prepared to do that 😯

my heart hurt so much to hear that omg

Nice theory, tried it and it did not work. We still have a male cardinal who attacks the window.

I'm concerned for the birds. Found a beautiful lifeless blackbird this morning. Regretting installing an enormous window last summer. Very sad. I'll try the lines. Thank you.

The hologram or prism style decals for the outside of large windows definitely helps. I have used them myself. but if the bird can sit anywhere near the window, you have to use a little preventative spikes. there is no other way, I hate to break it to those of you who are all worried about the safety of these nuisance birds. sometimes you have to take drastic measures.

Glad i wasn’t the only one having this problem

The robins have been going WILD! Imma try this today and hope for the best. They do it into the night too. It's ridiculous!

I taped some newspaper up to the window. My curtains at this window don't close. It worked. Hopefully, will be able to take it down in a couple of weeks.

Last week we found a dead woodpecker on a terrace. This morning we found another one. He was just sitting and couldn't fly away. He seemed to be fine except that but we took him to the vet anyway. They called us few minutes ago and said that he has internal injuries and probably won't make it. My heart is broken and I feel guilty, we are trying to find a solution...

Red Cardinal has been at my Window for weeks.

Based on research, the lines should be on the outside of the window (surface 1)?

I had SUCH high hopes for this, but within the hour our psychotic cardinal was back at it. He has been attacking our home for 2 years straight now - all seasons, all weather, sunup to sundown. We have tried everything suggested - the cutouts, CDs, streamers - they don't deter. We have put sticky on the windowsills and bird spikes - he hovers above them to attack. The only effective thing is covering a window. And if we cover a window, he moves to another. We covered every single window in the front of our home, his preferred location. He then started attacking the windows in the BACK of the house! I can't live in a house with every single window covered! He has started attacking our car windows as well. We have tried to find a nest around the house, but nothing. If you have any other suggestions, I would love to hear them. Right now, I spend most of my days away from my house, as I work from home and the constant banging drives me insane. I really miss my house and have come to absolutely despise this crazy bird!

This does not work for Cardinals, I put lines on both sides of the window with yellow highlights. didn't stop him.

sounds like it's worth trying--we've found having dirty windows seems to help, also!

Horizontal lines not needed just vertical lines will work.

Does not work with windows tinted. Birds don’t see the fluorescent marker. Ugh!

this help to keep birds from my window

Really appreciate for sharing this! 🙏

I did this with a black marker but they keep running into the windows is it cuz they can't see black or do I need to use the white pen?

I have tried it I hope it works. I will post an update.

Thank you so much !! It worked

As I got out of bed and getting ready to take a shower (April 26 2018), a Robin kept bashing through my other bedroom window. I banged the window to get the bird to stop doing that. Then by the time I got out of the shower, the Robin was doing it again. Only that time I closed the blinds.

I don't feel "harassed". I feel I put up something dangerous for them and want to help fix that. I'm getting the vibe that there are two causes from the bird's point of view: your point about them seeing their own reflection as a rival, and my problem of them seeing a path that's blocked by glass. The 2nd problem is deadly. I solved it on a mountain house with huge upper fixed windows by putting up screens even though the glass doesn't open. Now I have a house with huge sliders and I need a different solution that's more practical. Still looking but will try the yellow marker as an interim approach.

I have seagulls on the roof.. So if they ever bump into my window, then RIP window.

Thank you so much for this video and for caring💗I have MCS.. multiple chemical sensitivity. I know I can use vinegar and water as a non-toxic window cleaner, but I'm wondering if there's a non-toxic option for the highlighter pen? Thank you.

Thank you !! Im so upset, ,this same little finch, every morning, sits on the door handle and throws himself into the glass window - repeatedly !! Im going to try the highliter method. Ill report back .

How did they see the lines from the highlighter through the screens?

Thank you

This is not somethin i want to continuing doing. I want a permenant solution

I tried this today with a nuisance yellow finch we're dealing with, and it seemed to have no effect at all. Any other tricks you can recommend? I hate to say it, but I'm about to lose my cool with this frigging bird.

Can u suggest some experiment on metal sheet roop top.. crow is disturbing my early morning in routine

I tried the highlighter method, total waste the bird has not stopped at all. I actually have 2 of them, but they are also hitting my neighbors windows, so I don't feel so bad. lol

We have reflection tinted windows will that still work? it's like a mirror, we have a magpie attacking our bedroom window. Thank you for your Video.

Thanks!

You don't have to do it on the outside? Would it work better on the outside? I have a covered porch with a sliding glass door. That is the one they always hit. I was just getting ready to use water paints on it then I thought I would look to see what everyone else is doing.

Birds can't see glass, that's why I let my windows be filthy. No more birds crashing into them.

Do you have a pic or video on how it looks to the birds from the outside of the window, please?

Aargh! I have 11 tall windows under attack by a robin! Too many to use the highlighter method. ( He has flown into the house twice in the last day, so I’m not sure if he is simply targeting reflections.)

Hello i just got are new windows replaced There is a bird that does the same thing but in my bathroom window I love birds to but I can't take it anymore i don't want the the bird to get hurt please help

Great video

Thank you for this tip. I am now retired and the barn swallows which I like to have around, have been tapping on the window driving me crazy. We live in the north Texas country size east of Dallas. I have tried putting tarps on a step ladder outside the window (thinking that they are attacking their reflection). That has worked and moved their attack to an unprotected window. So I will try the highlighter. Is there specific colors that work best (i.e. humans can’t see)? Thanks again and have a great fall (it is fall, right? Haha).

what about sticking a picture of a huge bird on the window?will that work?

Didn't work for my crazy Robin.

I’ve tried this fake snakes even covering the windows with news paper it still runs into it every day constantly for months now, dang thing is too fast or I’d kill it

We have a spotted towhee that comes back every year in the spring. Every morning it pecks at window for hours long. I tried owl decoy that dont work, tried reflective tape dont work, tried cutouts dont work. Seems nothing works to get rid of them its very frustrating. Always same bird

a bird slammed into my window and it is dead and bleeding on the porch..

How thick do the highlighter lines need to be? Klim says 2 mm thick, Is this true? Also, is yellow the most effective color to use?And does the highlighter have to be fluorescent? I'd be grateful for any advice.

Just tried the solution and it didn't work:(

Put a plastic owl or falcon in the window. Try both inside or outside. Try Plastic toy snakes.

What sort of pen do I need to get?

Birds were doing this every morning but come to find out they were destroying our screen windows to make a nest with it. Bad birds.

But my windows are tinted...

Does it work against Ravens?

Thanks for the tip but this did not deter the male cardinal at all

I drew horizontal lines and then with highlighter went across. Nothing has deterred this female Cardinal. Ugh

Close your blinds while the sun is shining on it till the refection disperses.

Omg I hope this works cause these birds r driving me nuts lol I'll let u know

Boy, did you have to harm more birds by doing the "test" at the end? I would have believed your word alone. DAMN!

This does not work.

I have robins doing this to my new truck

Well that didn't work!

Use decals on windows!

I bought fake crows and snakes from craft store. I taped some to the window. I also put paper on the outside window. I inserted flags. Looks like hillbilly haven...but so far it's working!!! :)

Today a bird hit my window with full speed. Probably instant death.

Almost half the video is an introduction. We don't need an introduction. The title IS the introduction and THAT is why we are here, so tell us what is the solution, please.

just get some poison and put it on some birds food next of the window

there’s one doing it in my room right now... i can’t sleep... i want this bird to die so bad

I spent 20k on my windows. Be damned if I'm drawing on them.