Don’t know about ducks doing that. but freaking magpies.
I used to live in an apartment that was close to the hall’s entrance. The hall was always dark and the entrance was a glass door, so for a few months when the sun was at a certain angle it was basically a mirror from outside.
Every now and then I would wake up to very loud banging in the morning, get out of my apartment and see an angry magpie trying to beat the shit out of its reflection just on the other side of the door. It didn’t even see me, since the door was basically a one way mirror, so it just kept pecking at it. Suprisingly strong impact for a 200g little bastard.
That’s so funny omg
I worked at a place with mirror tinted windows a while ago. They were one way mirrors essentially. Even with lights on inside you couldn’t really see in. Anyways, we had a couple mocking birds who would fight the windows. Also an iguana that would do its posture dance and tail whip the glass to establish its territory against the identical iguana in the window. There was also a woodpecker for a while that would tap at the glass. It made for welcome distractions in the work day.



