In the morning, birds often hit the closed glass of my balcony, as if they wanted to rush in

This is the bird mistakenly thinking that the glass is not in the space and the poor little bird also.

I didn't evolve enough to know a thing like glass. This is also the case in my house, they always think they can come in, but they are dazed and unconvinced, and a few birds are chattering and analyzing, but they are not convinced and bump into it a few times and still don't suck it up. Looking at their pitiful appearance, I couldn't bear it.

Later, I had no choice but to pull a few decorations on the glass horizontally with dry color stickers, and then hang a few ornaments behind the glass so that they would not collide.