"Now You Can Protect Wild Birds From Windows
Help Birds see windows and avoid striking the glass ..
Window strike often occurs when birds perceive a LINE OF FLIGHT through one window of your home and out another. This also occurs on buildings with corners made of glass or when birds see SKY or TREES reflected in your windows.
This may occur on certain windows or areas of a window based on the season, time of day or orientation to the sun. Bird strikes are often a problem near BIRD FEEDERS.
Bird feeders should be positioned closer than 1 metre or further than 9 metres from your windows. Feeding birds are easily frightened and then take wild, evasive flight. If your feeder is close to the window, birds fly away from the house.
WindowAlert is a decal that can be applied to the outside of home or office windows. The decal contains a component which brilliantly reflects ultraviolet sunlight. This ultraviolet light is invisible to humans, but glows like a stoplight for birds.
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Bird Vision Birds enjoy sharper vision than humans. Birds can see certain light frequencies--including ultraviolet--that is invisible to us.
In fact, many songbirds have feathers that reflect ultraviolet light. This light is used to communicate species, gender, and perhaps even social standing. Birds can see this ultraviolet light under normal, daylight conditions. Humans require the assistance of a black light.
Why do birds see better than humans?
1) Both birds and humans have photoreceptive 'cones' in the retina located at the back of the eye. These cones allow us to see colour light. The human eye contains 10,000 cones per square millimetre. Songbirds, for example, have up to 12 times this amount or 120,000 cones per square millimetre.
2) In humans, these photoreceptive cones consist of three types. Each cone is sensitive to red, green, or blue light. This is called trichromatic colour vision. Birds have an extra cone for tetrachromatic colour vision. This extra cone expands the visible light spectrum, allowing birds to see ultraviolet frequencies.
3) Bird eyes, on average, account for 15% of the mass of the bird’s entire head. Human eyes, by contrast, account for less than 2% of the head.
In summary, birds will notice WindowAlert decals the MOMENT you place them on your window.
With millions of wild birds striking windows each year, every effort to reduce this loss becomes important. It is for this reason that WindowAlert manufacturers bird strike decals.
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PROJECT KERERU import WindowAlert Decals into New Zealand.
For more information, please email us at: info@projectkereru.org.nz
WindowAlert recommend 1 decal minimum per 60cm of glass starting from the centre and working out.
Decals will be sent via Tracked NZ Post.
