Of all the hilarious and outrageous stories in this thread, the "deadnaming parrot" one cracks me up the hardest. It's such a perfect encapsulation of the sheer fucking stupidity of the average troon, their utter contempt for reality, their complete ignorance of biology and their lack of theory-of-mind.
Parrots learn how to mimic sounds made by their companions/owners/whatever euphemism you want to use for the noisemakers that operate their cages and give them seed & water. You talk to the parrot, the parrot eventually decides you're not likely to go away anytime soon so it might be worth mimicking your noises a little to see if it shuts you up, makes you fuck off, or at least provide positive attention or (better still) treats. Eventually the parrot will hopefully decide you're pretty neat after all and are worth tolerating because sometimes you say and do cool things and sometimes try to make it happy.
There is no "intelligence" in the parrot's brain the way we conceptualize human intelligence. Parrots are certainly clever birds, but cleverness isn't the same as "human-tier intellect." This isn't an insult to the bird or a conceit for humanity, just a recognition of the difference. They can recognize their owners, learn their behavioral patterns, figure out how to open their cage's latch, find where the food & treats are hidden, and mimic the sounds their owners make that they like.
They are long-lived creatures (some parrots have longer lifespans than humans, and adults are cautioned to carefully consider how their eventual death will impact the life of an animal they're considering buying because it's very likely to outlive them), and they bond to their owners rather strongly. By the time a parrot is repeating shit you say to it, it's because it's known you a long time, trusts and likes you, and thinks you're worth playing with. Teaching your pet bird your name is very common and fun, and a good way to bond with the animal. It represents a significant time investment.
So no fucking shit your parrot, which you've spent months or years teaching how to make a noise that happens to be your (dead) name upon certain stimulation (i.e. you walk into the room), is going to make that same sound in response to the same stimulus even if you've "changed your legal name." The fuck does a parrot know about "legal name changes"? What fucking conceit is it to genuinely believe going to some building outside your house where the bird's never gone (and has no fucking concept of anyway) and telling a guy in a robe (who the bird has never met) that you're "really a pretty little girl now no really I'm not kidding" is going to somehow get word back to the parrot that the sound you've spent months or years teaching it to make now somehow "hurts" you and needs to be changed, because a "judge says so." Show a parrot that printed court order. He'll eat or shred it, because it's paper, and that's what birds do with paper.
The parrot understands literally none of any of this shit. It doesn't know what a "name" is. It doesn't understand "transgender" shit. It has no concept of "court," "legality," "judges," "court orders," or "deadnaming." There is no conscious thought process to say "oh hey my big peach-colored monkey friend changed his name, and it really hurts him to hear the old name, so I'm totally going to keep saying it, even though he's my human and I like him and don't feel any kind of hostility towards him at all. He's also a 'she' now for some reason and that matters to me because reasons." The entire suggestion implies hatred or cruel intent that simply isn't there. It's your parrot, it probably really fucking likes you. It doesn't hate you, want to hurt you, or cause you grief (even by accident). There's no malice there. Just confusion: "hey it's my human, I'mma do the thing my human likes ... [noise] ... oh no, it's sad now, what the fu ... Imma do the thing again to cheer it up ... [noise] ... oh man, uh ... this ain't good, maybe it's broken or something." Fucking evil to do that to an innocent animal.
You fucking taught it how to mimic your name. Now you're pissed at it for doing something that used to make you happy, and that it learned to do because it makes you happy and it wants to make you happy because it likes you?
Stupid fucking assholes.