They do have language, just different language. Porpoises can communicate. Primates can communicate with sign language to humans. My cat likes to go up in a loft so she will use body language and walk back and forth between us and the loft until we get a ladder. By parrot speaks in my voice and husband’s voice. He asks for what he wants to eat and gets mad if you bring the wrong thing. If he wants a cracker, then he asks for a cracker. My husband left today. As he went out the door, he called him by name and asked him to come back. If he doesn’t get what he wants he bangs his cage with something like a tantrum. When he senses we are upset he mimics a loud argument between two people. When i’m sad he will cry like a human. If my husband and I have tense or loud conversation he yells, “what’s wrong?” We have to go comfort him with soft tones and tell him everything is ok. He will sometimes say,” Birdie is not bad”. One time I was gonna leave him boarded at the vets. I talked to him sternly and told him not to throw his seeds and if he did to say, I’m sorry. WHen I came back .the vet to.d me he threw his seeds a few times and ducked his head and seemed like he was mumbling under his breath, I’m sorry. Now the bird remembered to do that three days later in context after being told one time.