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Staff at Slimbridge WWT,Gloucestershire, were very concerned about chicks that launched themselves from their nests and immediately flew into the restaurant windows. They came up with a plan. Cover the windows with a very thin film that reflects ultra-violet light. It's invisible to the naked eye and birds see a striped pattern and they don't fly into it. The BTO estimates that a 100 million birds crash into windows each year killing about a third of them. Scientists found that the UV filter cut the collision rate by 90%. In the two years since the UV film was fitted at Slimbridge not one bird has hit the windows. It was also put on the windows of hides.
There's a photo of it here. https://www.bbc.co.uk/news/articles/c4g35g0kpk0o
Sadly, last year, the government declined to add an amendment to its Planning and Infrastructure Bill that would have mandated the inclusion of the UV film. It would include buildings like skyscrapers and office blocks with hundreds of windows. No doubt the builders' lobby balked at the cost.
Re home use. Often,birds see a reflection of a branch of a nearby tree and fly to it with disasterous results. One suggestion is to trim branches near windows. We keep the dining room patio doors blind angled so a bird isn't able to see straight through to the living room and the road and trees beyond. Before that every now and then, there was a thud. Fortunately, no bird was killed but one day, outside, looking for one, I realised why it was happening. Birds would fly over the garden en-route to the trees across the road at the front which they were able to see.
I did a Google. It's expensive.
https://www.glassfilms.eu/commercial-window-films/bird-window-film/
There's a photo of it here. https://www.bbc.co.uk/news/articles/c4g35g0kpk0o
Sadly, last year, the government declined to add an amendment to its Planning and Infrastructure Bill that would have mandated the inclusion of the UV film. It would include buildings like skyscrapers and office blocks with hundreds of windows. No doubt the builders' lobby balked at the cost.
Re home use. Often,birds see a reflection of a branch of a nearby tree and fly to it with disasterous results. One suggestion is to trim branches near windows. We keep the dining room patio doors blind angled so a bird isn't able to see straight through to the living room and the road and trees beyond. Before that every now and then, there was a thud. Fortunately, no bird was killed but one day, outside, looking for one, I realised why it was happening. Birds would fly over the garden en-route to the trees across the road at the front which they were able to see.
I did a Google. It's expensive.
https://www.glassfilms.eu/commercial-window-films/bird-window-film/
