[quote=Gill Catton;106249]I don't think they do it on purpose! They genuinely think they are flying towards further habitat and empty space, I know how much it can hurt just walking into a patio door (haven't most of us doen that? Or is it just me?

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I can't imaging how much it much hurt to fly at full speed into one....

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I wasn't suggesting it did it on purpose, I'm yet to come across a suicidal bird! although you never know............