You cannot guarantee this. The bird could decide to fly directly down the beam path and there's nothing you can do.

Directly from the article:

> The system uses a net of lasers surrounding the beam to detect obstructions, like a bird or person, and it automatically shuts off transmission until the obstruction has moved on.

Since there are so many possible obstructions that could occur, I suspect that the link will continuously turn on and off. This will be worse than before so you'll need local storage or generation to account for these unplanned outages.