Kamikaze birds

I could understand it if the windows were sparkling but they really aren't.

Good idea, I'll have a look at those Elegran.

We had a family of baby blue tits which fledged and were flying around. Within an hour of so they had all crashed into the conservatory glass.

You can get silhouettes of birds of prey to stick on your windows to discourage the birds from flying at them.

I almost always have a pigeon imprint on my French window (no, it's not the same one, I do clean them off) but fortunately the birds recover and fly away. A couple of times I have discovered a dazed Sparrowhawk too, which had probably been after the inhabitants of the bird feeding station and come a cropper.

You can easily stop this baubles don't clean your windows!