And physiology alone seems unlikely to tell us how they “feel” about it.
Perhaps they are so amazed by the technology that they couldn’t care less about the flicker :)
But, if we’re being pedantic, I should mention that there are languages that do not require ordering for meaning but instead use declensions and conjugations (though ordering may still be used for further expressiveness). Though maybe you include this in your “fixed literal vocabulary”.
Edit: A quick search suggest parrots can indeed use a basic grammar via sentence structuring. One of a few relevant search results: https://cosmosmagazine.com/science/biology/polly-wants-a-con....
Best cognitive interaction what the best educated birds can perform is to count 2+3 verbally (some African grey parrot).
What if it's more like using an old telephone or a black-and-white TV? A hindrance, but better than what came before?
If our displays flicker to them, which is a highly probable, it is annoyance by any definition. It may be not annoying to spiders which have a tiny brain and live in a world of mechanical sense, but birds are smart and most of their brain is shaped for visual data.
> A hindrance, but better than what came before?
How can this statement be applied to birds? They neither expect nor desire all these technology and the only reason they are not scared of it is a professionalism of their caretakers.
Are you sure? Parrots are highly social creatures. Very possible that they do desire if not the technology, but the connection it gives them.
> the only reason they are not scared of it is a professionalism of their caretakers
Maybe. Maybe not. You have way too much confidence for something we do not know enough about.
Well, an annoyance by your definition. Not sure how you managed to declare it universal.
Especially if it is not possible to escape from this oscillation (caretaker want the parrot to interact with the display).
Especially if it is in the animal's favorite kind of sense (mechanical oscillation of a spiderweb is a working way to annoy the owning it spider).