---
product_id: 17007041
title: "WindowAlert UV Liquid Marker | Anti-Collision Bird Deterrent to Prevent Bird Strikes on Windows and Glass Doors | Protect Wild Birds Around Homes and Buildings"
brand: "windowalert"
price: "¥251"
currency: JPY
in_stock: false
reviews_count: 7
url: https://www.desertcart.jp/products/17007041-windowalert-uv-liquid-marker-anti-collision-bird-deterrent-to-prevent
store_origin: JP
region: Japan
---

# UV reflective Bird protection Easy application WindowAlert UV Liquid Marker | Anti-Collision Bird Deterrent to Prevent Bird Strikes on Windows and Glass Doors | Protect Wild Birds Around Homes and Buildings

**Brand:** windowalert
**Price:** ¥251
**Availability:** ❌ Out of Stock

## Summary

> 🦅 Save the Birds, One Dot at a Time!

## Quick Answers

- **What is this?** WindowAlert UV Liquid Marker | Anti-Collision Bird Deterrent to Prevent Bird Strikes on Windows and Glass Doors | Protect Wild Birds Around Homes and Buildings by windowalert
- **How much does it cost?** ¥251 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/17007041-windowalert-uv-liquid-marker-anti-collision-bird-deterrent-to-prevent)

## Best For

- windowalert enthusiasts

## Why This Product

- Trusted windowalert brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Simple Application:** Easily apply with bingo markers for a quick and effective deterrent.
- • **Long-Lasting Solution:** One bottle lasts up to three months, providing continuous protection.
- • **Invisible Yet Effective:** Dots dry clear, ensuring your view remains unobstructed while keeping birds safe.
- • **Proudly Made in the USA:** Crafted in Bend, Oregon, ensuring quality and reliability.
- • **Protect Our Feathered Friends:** Safeguard songbirds from window strikes with innovative UV technology.

## Overview

The WINDOWALERTUV Liquid Marker is an innovative anti-collision bird deterrent designed to prevent bird strikes on windows and glass doors. This UV reflective liquid fills gaps between decals, creating a visual barrier that protects wild birds. Each 1-ounce bottle lasts three months and is easy to apply, making it a practical solution for bird conservation.

## Description

Introducing WindowAlert UV Liquid, the breakthrough solution in bird strike prevention. In the US alone, countless songbirds face peril each year due to window collisions, a problem now combated by this innovative product. After 2 years of meticulous chemical engineering, WindowAlert presents UV Liquid, the ultimate complement to our acclaimed window decals. Designed to seamlessly fill the gaps between decals, UV Liquid completes the visual barrier, ensuring comprehensive protection for wild birds around homes and buildings. Application is easy – use our specially designed bingo marker to create dots on window glass. These dots, nearly invisible once dry, last 4-6 months and can be effortlessly removed with standard window cleaners. Scientific studies recommend optimal protection by placing dots 4 inches apart horizontally and 2 inches apart vertically. UV Liquid may be used independently, without decals, providing flexibility in safeguarding our feathered friends. The 1 oz. bottle of UV Liquid is made in the USA, emphasizing our commitment to quality and environmental responsibility. To ensure effective application, adhere to the provided instructions. Apply only to an exterior glass surface free of overlays, tints, films, or coatings. Choose cool conditions for application, allowing the liquid to dry to clear. Clean the glass before application, ensuring it is free of chemicals and cleaners. The application process is simple: gently touch the UV Liquid marker to the glass, forming a dime-sized dot. Create a visual barrier across glass surfaces by applying WindowAlert decals and filling in the gaps with UV Liquid. The ultraviolet reflectivity will fade over time, necessitating reapplication every 4 months or testing with the WindowAlert UV Flashlight for best results. With a 12-month shelf life, this product ensures lasting protection for our avian companions. Take a stand against bird strikes with UV Liquid, a responsible choice for bird-friendly architecture.

## Features

- Save the beautiful songbirds you love. WindowAlert UV Reflective Liquid acts as a deterrent for wild birds from flying into glass windows and sliding doors.
- UV Liquid is designed to fill in the gaps between our decals on windows - providing complete protection. WindowAlert decals catch the attention of birds. UV Liquid completes the visual barrier.
- WindowAlert UV Liquid is easy to apply. Simply use our bingo markers to make dots on outside window glass. The dots dry to virtually clear and are easy to remove.
- Each bottle contains 1 ounce of WindowAlert UV Liquid and lasts three months. For best results, apply with WindowAlert UV Decals. WindowAlert UV Liquid is made in the USA.
- UV Liquid was pioneered in Bend, Oregon after two years of chemical engineering research. WindowAlert is the trusted source for prevention of bird window strikes and window collisions.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Scent Name | Unscented |
| Number of Items | 1 |
| Unit Count | 1.00 Count |
| Item Volume | 1 Fluid Ounces |

## Product Details

- **Brand:** WINDOWALERT
- **Scent:** Unscented
- **Item Volume:** 1 Fluid Ounces
- **Number of Items:** 1
- **Unit Count:** 1.0 Count

## Images

![WindowAlert UV Liquid Marker | Anti-Collision Bird Deterrent to Prevent Bird Strikes on Windows and Glass Doors | Protect Wild Birds Around Homes and Buildings - Image 1](https://m.media-amazon.com/images/I/71CQVjGlf3L.jpg)
![WindowAlert UV Liquid Marker | Anti-Collision Bird Deterrent to Prevent Bird Strikes on Windows and Glass Doors | Protect Wild Birds Around Homes and Buildings - Image 2](https://m.media-amazon.com/images/I/61xMZa07nmL.jpg)
![WindowAlert UV Liquid Marker | Anti-Collision Bird Deterrent to Prevent Bird Strikes on Windows and Glass Doors | Protect Wild Birds Around Homes and Buildings - Image 3](https://m.media-amazon.com/images/I/61qDDP36WNL.jpg)
![WindowAlert UV Liquid Marker | Anti-Collision Bird Deterrent to Prevent Bird Strikes on Windows and Glass Doors | Protect Wild Birds Around Homes and Buildings - Image 4](https://m.media-amazon.com/images/I/71z7yXUtMIL.jpg)
![WindowAlert UV Liquid Marker | Anti-Collision Bird Deterrent to Prevent Bird Strikes on Windows and Glass Doors | Protect Wild Birds Around Homes and Buildings - Image 5](https://m.media-amazon.com/images/I/41ojMwFixsL.jpg)

## Questions & Answers

**Q: Will this work without direct sunlight, on a window that's under a shaded patio?**
A: I believe it will - it worked for us on a row of windows under an eave.  The principle is that the dots (that's how I used it...as dots on the cross-hatches of interior mullions, so cannot be seen from inside the house) are visible to birds although not so much to us - if enough light to cause a reflective surface generating bird strikes, there is enough to 'shine' ultraviolet for the birds.  Was 100% effective in our application.

**Q: Does the liquid last longer than the decals? Also, is the liquid effected by washing the window?**
A: No, the liquid does not last longer than the decals, but it does last for several months here in Arizona.  The decals last for a few years.  I just reapply the liquid each time after I wash the windows and it works just as well if not better than the decals.  It goes on quickly and dries in about a minute and a bottle goes a long, long way.  It doesn't interfere with my view in or out of the windows, but at certain times of the day, I can see what I've drawn on the glass from both sides.  I recommend the liquid and will buy it again to use together with decals.  Not a single bird has hit the windows since I started using them.

**Q: Does this product work on mirrored glass windows?**
A: I don't know whether it works on mirrored glass, specifically.  The liquid should be applied to the exterior surface.  I just refreshed my 'dots' for the season and added some new stickers and haven't had a bird strike since the refresh.  It's been easy to tell when the effectiveness wears off; unfortunately we start getting bird deaths again.  I recommend a twice a year refresh.

**Q: I know it's supposed to be applied on the outside, but will it work if i put it on the inside?**
A: No. It needs to be on the outside to break up the reflection on the glass.

## Customer Reviews

### ⭐⭐⭐⭐⭐ UV Bingo Dauber works well and people do not see it
*by T***M on July 19, 2021*

This is the only solution that I could find that people would not see. This takes a little practice to use, but when I didn't daub the UV "ink" perpendicular to the window, it worked fine. The dauber could be improved, as it's just a bingo ink dauber and we are definitely using this dauber on vertical surfaces! (Manufacturers, please think about this). The dots were so light that the house showed and sold even though I had removed the taut bird safety net and daubed the windows all over with this thing.Yes, you have to position it against a vertical window, but don't start by holding your dauber at a 90 degree angle to the window. You can feel the ink slogging inside, so start with the dauber at a 60 degree angle and move up to 90 kind a slow, and press the spongy part only as hard as you need to against the window. The ink can "slam" into the spongey thing inside if you don't slowly apply the sponge, and it flows out too much and drips. The design of the dauber could be improved. I can't wait until competitors make this cheaper, because it works as long as you apply dots close enough so birds don't think they can fly in between the dots (and into the window). There is a faint image of the dots, but unless you are looking at the *cleanliness* of your windows, you will not notice them. No one noticed ours. Not the realtors nor the house inspection guys.

### ⭐ This doesn't dry clear as stated in description of item
*by S***R on May 12, 2023*

This product doesn't dry clear, as a matter of fact, it gunks up your windows. Also, I had wanted to put dots on my windows, with this product, but if you squeeze too hard while applying, it sends drips all the way down your window. It looks like when a bug hits your windshield, after application. It does look like it could help prevent bird strikes, but is too messy and makes windows looked gunked up. You can't return it either as it's very toxic, has lots of warnings on it.

### ⭐⭐⭐⭐⭐ Truly reduces bird strikes on large glass windows
*by P***K on August 6, 2020*

You can see from the photo that we have an enormous expanse of windows - and we have suffered from bird strikes after we cleaned our windows. This past spring during quarantine, we realized we were having non-lethal strikes once or several times every day, and lethal strikes every other week, terribly sad all around. I was struggling with what to do- I did not want to put glitter stickers or some other tacky option over the nice windows and disrupt the view and aesthetic, but I couldn't keep hearing a bird smash into our window and having to go over to see if it had a broken neck or not. I tried this UV liquid, and tried something that is not on the bottle's instructions. Instead of putting polka dots all over my windows, I instead painted the liquid over the window frames. I hoped that by outlining the glass panes with the bright UV reflection, it would look different enough to them that they wouldn't fly right into the window. It dries clear, you can't tell where I put it- I do have grey paint on my window frames. I waited 3 weeks after painting the window frames to write my review: It Works! I have had no strikes in 21 days. We are still home all day, and my wife has commented on the well it is helping. If you have birds hitting your windows-It is worth a shot. Its not too expensive- it has to be redone every few months so be prepared for that, but it doesn't take long. I have been very happy that I can have my windows and keep the birds safe. Will use from now on.

## Frequently Bought Together

- WindowAlert UV Liquid Marker | Anti-Collision Bird Deterrent to Prevent Bird Strikes on Windows and Glass Doors | Protect Wild Birds Around Homes and Buildings
- WindowAlert Leaf Medley Anti-Collision Decal - UV-Reflective Window Decal to Protect Wild Birds from Glass Collisions 2-Pack - Made in The USA
- WindowAlert UV Flashlight Tester - 395 Nanometer LED UV Black Light Flashlight - Easily Check the UV Coating of Your WindowAlert Decals

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-01-26*