Bird often heard chattering by the Dee (3)

I believe the answer is:

jay

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'bird' is the definition.
(jay is a kind of bird)

I don't understand how the rest of the clue works.

(Other definitions for jay that I've seen before include "-- Gatsby, F. Scott Fitzgerald character" , "Bird of the crow family with blue plumage" , "Colourful British bird" , "Colourful member of crow family" , "Colourful type of crow" .)

I've seen this clue in the Evening Standard.

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