How can you teach a parakeet to avoid mirrors?

I want to let my two parakeets, Aspen and Kiwi, fly around my house, but there are two large mirrors. One of them is on my fireplace and goes up to the ceiling, which is probably about 10-15 feet. This one I cannot cover, so I want to teach my parakeets to avoid it. Any ideas how?

Mine learned it by trial and error. As one of them was blind, falling behind furniture was more of an issue...
Kiteman6 years ago
Parakeets are intelligent birds - they'll soon figure it out.

To help them, though, why not try one of those stick-on bird silhouettes used to stop birds crashing into windows?

butters601 (author)  Kiteman6 years ago
Okay. Thanks. I'll have to try that.