They don't really "read", they recognize the shape of the word.
Be careful, it's a commercial site, and advertisement. They sell a method, probably very expensive.
Animals are able to count, to learn the hours of the day, to understand our language (only: word by word, or sentences as a whole, and often they'll have problem to understand things separated from the body language), but understanding abstract concepts like grammar or a letter producing symbolically a sound, or analyzing the part of a sentence and forge their own, is impossible for them.
We have a symbolic brain, they don't.
Human language is made this way, for human symbolic-brain. Their languages are not made on this mode.
Agreed. But there are many people who think parrots only mimic our speech when in truth they learn words and phrases with their meanings. We used to have an Amazon parrot and he always used language meaningfully. A breeder I chatted with also said she often heard a pair of parrots she owned having meaningful conversations. They are amazing.
They can learn words, the same way dogs or cats, or even hens do. I have no problem to believe that. And they can be trained to ask food (or something else) using words, by "positive reinforcements".
But using our language meaningfully, no.
To use the human language, you need to have a symbolic brain, to be able to use grammar. Try to explain a bird what when you had "will" in a sentence, the meaning change to mean the future. Good luck with that. They cannot get abstract things, and grammar is 90% of abstraction and symbolic, or something like that. A language without grammar is not our language. 2 words changing mutually their meaning is a thing that humans have no problem to get.
When 2 parrots want to have a meaningful conversation, they don't use our language, they use their own. Why would they want to use our language? Their language is not well adapted to them? It would be like to make them eat with a fork, that's called anthropomorphism.
Their language is a body language, that we are not aware of, and with some small sounds, and we see only our language, when they communicate all the time.
I am so sick of these damn parrots. I feel a language course should give you a thorough grounding of terms that are in common usage. I now have a complete knowledge of the declension of "parrot" but I'm still vague on man, woman, boy and girl. I'm nearing the end of the course now and feel I've wasted my time.