Given parrots can talk, there must be a neuron count that activates language (assuming anatomy allows it), similar to LLM parameter count.
Where do you get the conclusion from, that there is a "must"? There can be lot's of neurons ... but dedicated to other purposes.
Parrots can't "talk". They just mimick noises they've heard before
Lots of birds can talk, not only the very clever ones like parrots and covids. Its mimicry and that generally doesn't seem to take many neurons.
Plausible, and likely similar.
mimicking is not talking....
Its part of their calling social members wiring....
Given parrots eat their own poop (https://lafeber.com/pet-birds/questions/parrots-eating-poop/), there must be a neuron count/density that activates self-poop eating (assuming anatomy allows it), similar to LLM parameter count.
That seems like an unfounded inference. Plenty of animals have more neurons than humans but lesser cognitive and language abilities. Language has lot to do with structure of the brain in addition to neuron count.