This isn't really special in the cognition department, but it was kind of funny. My husband has been trying to get Timber to "take" to him since we brought him home. He spends a lot of time "playing" with him, which I'm not sure Timber doesn't see as aggravation. Sometimes he seems to enjoy it (you know how they love attention) other times he seems annoyed. At any rate, hubby was putting his hand on the cage on one side then moving it to another area. Timber will run and grab the cage bars with his beak then run to the next location where his hand is. Believe it or not, he seems to think this is a game and enjoys it. At any rate, he tripped a bit on a toy in the bottom of the cage and missed. Hubby laughed, Timber said "asshole." Ha. That isn't a word he got from us, but apparently one he knows to use appropriately!