Aldo came with a few words, but also some strange muttering that sounds for all the world like a TV on low volumn. He usually makes these noises when he's in his sleeping corner. Hubby thinks it sounds like Furbish, but it's more like background TV to me. Both his people worked, and we also leave either the TV or radio on when we're gone.
The birds are all in our bedroom where they can see out our double front windows. Aldo alerts whenever he sees someone walking down the street or when the mailman comes into the yard. Not exactly an imitation bark--more like monkey screeching. No idea when those sounds came from.
Now that Lovey (the lovebird) has finally abandoned her nest, she's resumed her place at the window. We have a clear plastic feeder attached to the outside, so she will fly to the sill and call out for the outside birds. She gets very upset when they don't listen to her. So the quaker cussing starts--something she definitely learned from Otey.
It's really amazing what they learn from each other. While the quakers are more homebodies & tend to hang around their cages, Lovey likes to explore & will occasionally try to leave the bedroom. I saw her eyeballing the bookshelves in the hall the other day, and just said, "Lovey, get back here, little girl." Otey immediately chimed in with "Come on. Come on." Then Aldo started saying it too. All in context.
I'm just glad Aldo hasn't picked up the quaker cussing. He & Otey already do this loud squawk exchange every afternoon. More cussing would be too much to handle.