It's alive!
It's NOT unique!

Does it appear on a national flag?

Does it live in the ocean?

It does not live in the ocean.

Might it take tea with the vicar?

It is (more precisely they are) unlikely to take tea with the vicar, but the possibility can’t be ruled out entirely.
It is (they are) real.

Are they associated with a particular location?

Not really, people think they are but that's more an urban myth.

Does it or do they have feathers?

They do have feathers! (audience amusement)

Is this associated with some profession?

Are they predominantly female?

Predominantly female? Yes.
Are they Burlesque Dancers?

They are not burlesque dancers.
Are they British?

Originally yes, though not always native.

Is it the all the parrots that have been used in the famous Monty Python sketch?

Well yes it is! Though I'd worry about having a mind like that. Here is a baton which was used as a perch in the first version of the sketch, ignore the thing nailed to it. Now pick the next subject and infuse some life into this.

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I knew it. Sort of. So the next one is VEGETABLE. Have at it.