Although we know budgies love their mirrors there were some surprising reactions to these animals and mirrors.
This video is funny to watch and prroves what I already knew. Animals tend to think they are looking at another animal when they see their reflection in the mirror. They don't seem to understand that this is a reflection of themselves. I have a dog who acted the same way, he seem fascianted with the dog he was seeing in the mirror apparently unaware it was him. It was funny seening the different reactions of these animals some seem to want to mate with the other animal and others wanted to attack it, all the while not understanding it was them.
Years ago, I had an Arabian stallion, and we used to turn him loose in the yard to graze. He would come up to the back porch, which had a large window. Sine it was darker inside the back porch than outside; the window effectively worked as a mirror. Raffix would look at himself in the mirror-window, and usually at first, he made soft little flirty nickering sounds. When his "girlfriend" didn't respond; he soon would think that he should tell that horse how manly he was and he would rear up just a little,put his ears flat back, and loudly bellow at the horse in the mirror. After a while of doing that, he would go around and peek in the back porch door, so he could get a better look at that horse indside of the porch; but , of course, there was never any horse inside when he looked, which always seemed to baffle him. Very often, we would be inside and we would see Raffix out there, making the rounds of the house and peering in every window, trying to find where the "mystery horse" went to. He provided a lot of entertainment for us sometimes.
This is cute, the animals behavior when they see their reflection in the mirror is entertaining to them as well as us. We had a dog that liked to watch tv.
Our dogs don't mind the mirrors except our youngest dog Barbie. Whenever she would be in front of the mirror, she would be barking at her image. Sometimes we make fun of her and put her in front of the mirror on purpose. You know kids, they love to tease animals. My husband used to take care of roosters, they were actually fighting cocks. For practice, the fighting cock would be placed in front of the mirror and the reaction would be violent. Those fighting cocks seem not to have a very clear vision such that they couldn't discern the image that is theirs. Some years ago we had a pigeon that stayed on the second floor, just beside a big mirror. But she never reacted strangely as if the mirror is just a mirror.