Physical or nonphysical, it has form otherwise we couldn’t distinguish between different infromations.
It may have a form, but not necessarily a physical form.
What else?
The word bird has to have form also otherwise we couldn’t distinguish it from word human.
It doesn’t have a form that is physically necessary though. This is illustrated by the fact that there are different words for the same bird in different languages that each have their own form but mean the same thing. It took an already existing mind to assign the word bird to a bird.
How something which is not made of anything can possibly have a form?
The number 2 is not made of anything yet it exists mathematically. Abstract objects have no material physical form yet they exist at least in our minds.
I don’t think that Angels don’t have any sensory system. How they could possibly interact with each other?
Angels have the power of intellect and will. Are you saying that the only way for something to interact with something else is through the senses? What makes you think that Angels can not transfer their thoughts or hear God thoughts without having to have ears or a mouth?
I don’t believe that Animals have no intellectual power.
Here is an article in this regard.
They lack the intellect and will. They are primarily sensory creatures. That is they operate materially with no immaterial mind. They operate through instinct. While chimpanzees can be trained to remember certain sign language words they don’t really know what those words mean in a sentence. They have no conceptual abilities. They do not know the difference between dog bites man and man bites dog. Yet any small human child in any country will laugh at man bites dog. And you can take any child from one country and stick him in another country and he will learn the language. Whereas animals can not grasp basic sentence structure. They can not make the conceptual links.